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Quandaries & Queries
Q & Q
 -4 + 3/2 2018-11-15 From Chloe:so I have this paper and I'm confused, -4 + 3/2=???? so I originally got -1/2 but I looked at Calculator papa and he says -5/2 and then I looked at google and all I got was -2.5 and i am so confused and lost.Answered by Penny Nom. Adding fractions 2017-10-27 From Sandy:virinchi distributed 4/7 of cake to his friends 1/3 of it to his family members which part of cake is remaining?Answered by Penny Nom. find f+g 2016-06-26 From yzabelle:find f+g f(x)=x^2-1 g(x)=square root of x+2Answered by Penny Nom. Fractions of two quantities 2016-01-22 From Melody:Kate ate 1/4 of her orange. Ben ate 2/4 of his banana. Did Kate and Ben eat 3/4 of theit fruit? Explain.Answered by Penny Nom. Adding fractions 2014-01-31 From bianco:2/3+3/4= 9/8-6/8=Answered by Penny Nom. A word problem involving fractions 2014-01-23 From Pamela:John put 1/4 of his flowers in a vase He gave 1/2 to of the flower to his wife He gave 1/5 of the flowers to his daughter He has 8 flowers left How many flowers did John start withAnswered by Penny Nom. Why can't we add or subtract speed? 2013-11-21 From kashish:why we cannot add or subtract "speed" / directly in any given distance , speed , time questions?Answered by Chris Fisher. Adding mixed numbers 2013-11-20 From Kathy:1 3/4 + 1 2/3= ? 5 1/2 - 2 5/6= ?Answered by Penny Nom. Ann has a bag of marbles. 2013-07-25 From Carmen:Ann has a bag of marbles. she gave one half to her friend Tina and then one third to her friend Tom. Now left with 15. How many did she had originally?Answered by Robert Dawson and Penny Nom. Cutting three sections of pipe 2013-05-16 From Michael:A plumber cuts three sections of pipe from a 12’ length of ABS pipe, the lengths of the sections are 33 3/8”, 56 5/8” and 39 7/8”. What is left over from the full length, if the saw cut is 1/8” wide?Answered by Penny Nom. Adding two fractions 2012-09-19 From jeanette:Question from jeanette, a parent: can you help me figure this according to BEDMAS I am lost steps please: $\frac{12.75^2}{50} + \frac{13.49^2}{60}$ I hope this is not too confusing for you it is to me...Answered by Harley Weston. Adding more than 2 fractions 2012-09-10 From Anonymous:How do you add or subtract more than 2 integer fractions? OK, here is an example. -5/6 + 7/4 + 13/8 Please tell me the steps. Thanks- grade 9 studentAnswered by Robert Dawson and Penny Nom. Adding speeds 2012-08-26 From Roy:May I ask if it is correct to add the following with units included? Some tell me that the units cannot be included in the addition because we cannot add speed.Answered by Harley Weston. Adding fractions 2012-01-05 From laurie:if shaded parts of a circle are 4/7 and the other is 1/3 what fraction is leftAnswered by Penny Nom. 1 third plus 5 sixths 2011-11-10 From Matt:1 third plus 5 sixths =Answered by Penny Nom. pi/2 + 12/13 2011-05-24 From Jen:If you have (pi/2) and you want to add it to (12/13), how would you go about it?Answered by Chris Fisher. 1/a^2 + 1/b^2 2011-01-19 From robert:If (a + b)^2 = 81 and ab = 18, find the value of 1/a^2 + 1/b^2 ?Answered by Penny Nom. Least common denominator 2010-02-13 From Priscila:3/8 + 4/5 + 7/3 + 9/10 = ? Thank you for your assistance. PriscilaAnswered by Penny Nom. Combining fractions 2010-02-10 From Nick:Combine the fractions 2m/t + 5/mtAnswered by Penny Nom. Multiplying in different bases 2009-02-25 From Susan:11 base 2 X 22 base 3 + 33 base 4 = _________ base 5Answered by Robert Dawson. Averaging percentages 2009-02-21 From Chris:Ok I'll give you a simple example of what I'm doing. Lets say that on one forum, a memebr has made 52 posts out of the 412 posts made altogether. Then on another forum, the same person has made 10 posts out of the 60 posts altogether. What percentage of the posts has this person made in these 2 fourms combined.Answered by Robert Dawson and Harley Weston. Adding fractions 2008-09-17 From amanpreet:please can you help me to simplify: 2(c-3) / 7 + 3(4c-2)/2Answered by Penny Nom. How do you add decimals? 2008-06-05 From nyheashiacurry:how do you add up decimals?Answered by Janice Cotcher. 3 radical 48 +11 radical 75 2008-05-24 From Maria:Add 3 radical 48 +11 radical 75. Write answer in simpliest form.Answered by Penny Nom. Sum and difference of cubes 2008-01-30 From Amanda:It has been a really long time since I was in Algebra and I can't remember how to factor cubes such as x^3 +81 or subtracting/adding fractions with variables such as [1/(x+h)+2]-[1/x+2]. Please help!!!Answered by Penny Nom. Adding algebraic fractions 2007-08-14 From John:Ive completely forgot anything to do with the subject mentioned, so my question is straight to the point.. I need to know how to do the following problem (Preferably do not give me an answer though) (k/3k-8) - (4/k+2)Answered by Penny Nom. Fractions of fractions 2007-07-18 From Bridget:Sam and Mary each owned one-half stock in a printing company. Sam sold 2/3 of his stock to Mary. What fractional part of the printing business does Mary now own?Answered by Penny Nom. Adding with mixed fractions 2006-03-30 From Becca:can anyone help with how we change to get the same denominator with adding whole number. example:8+7 3/8 6 1/2 + 2 5/6 Answered by Stephen La Rocque. Adding fractions 2006-03-26 From Barbara:I know that to subtract 1/4 from 2/3 I must find a common denom. Now the 2/3 becomes 8/12.....i understand the 12, but where does the 8 come from?Answered by Penny Nom. Adding improper fractions 2005-11-25 From Paula:I would like a simple step by step explanation on how to add improper fractions.Answered by Penny Nom. Adding positive and negative numbers 2005-09-03 From Billy:46 + -24 = -38 + -22 = 19 - 20 = Answered by Penny Nom. Adding consecutive integers 2005-05-13 From Yas:i need some help with my work which is to investigating sums of consecutive numbers for example: 15= 4+5+6 and 15=1+2+3+4+5Answered by Penny Nom. The least common denominator 2004-11-03 From A student:Write the LCD for each pair of fractions. 13. 1/3,1/5 14. 2/7,1/4 15. 3/4,3/5Answered by Penny Nom. Subtracting fractions 2004-05-11 From Filipe: Question: _5_ - __7__ 6ab 8aAnswered by Penny Nom. A/30 + B/105 = (7A + 2B)/x 2004-02-05 From Jim:If A/30 + B/105 = (7A + 2B)/x and A, B, and x are integers greater than 1, what must x equal? Answered by Penny Nom. Adding percentages 2003-12-19 From Paula:How do you add percentages e.g 90% + 80% + 60% + 54% + 25% = ? Answered by Penny Nom. Adding fractions 2003-11-16 From Ken:My name is Ken and I am taking my GED course for my High School and have not been in a class for 35 years. I am doing this for re-training. I am at the part about fractions. Here is an example that I am having trouble with. 1 3/7 + 4 2/3 + 11/21 They have no common denominators. Could you PLEASE help me. If you could send me a step by step explanation it would be greatly appreciated.Answered by Penny Nom. 7+8+9+...+1000 2002-09-11 From Shirley:My question is what is the formula for adding up numbers when you don't start with number 1? For example 3 + 4 + 5 + 6 = 18. But how could you arrive at the answer without adding all the numbers?Answered by Penny Nom. Common Denominator 2002-08-26 From Slobodanka:What is a Common Denominator?Answered by Penny Nom. Adding algebraic fractions 2002-03-20 From Dolores:I get totally confused with this problem. I get confused with the getting the lowest terms. 4/x-5 + -2/x -10/x^2-5x Answered by Penny Nom. Adding algebraic fractions 2002-01-23 From Francine: Hello, I've come up with an answer for the following problem but it's not the same as the book's answer. However, the book has a lot of mistakes in it and I don't know if I'm doing it properly or not. Your help would be soooo appreciated. It's driving me crazy.The problem is:  2 + 3 + 4 --------- + --------- + ---------- (x-1)^3 (x-1)^2 (x-1)  [(x-1)^3 is (x-1) to power of 3 etc.] Answered by Penny Nom. Adding and subtracting rational expressions 2001-05-03 From Donna:Adding and subtracting Rational expressions. I am in grade 10 and I am a student here is an example of the questions: 1/(x+1) - 1/(x-1) = ? Answered by Penny Nom. Adding functions 2001-02-19 From Jackie:f(x) = x2 + 1; g(x) = x2 - 1 find a) ((f+g) of h)) (x) b) ((f-g) of h)) (x) c) ((f of h) - (g of h)) (x) Answered by Penny Nom. What is wrong with these probelms? 2001-02-09 From Cindy:Hi, I am a planning on becomming a teacher and i am asked to find out what is wrong with these probelms and how i would go about showing a student what is wrong with them!! Error in patterns: 13/35=1/5; 27/73=2/3; 16/64=1/4 4/5+2/3=6/8; 2/5+3/4=5/9; 7/8+1/3=8/11 2/3*3=6/9; 1/4*6=6/24; 4/5*2=8/10 Answered by Leeanne Boehm and Penny Nom. Adding fractions 2000-04-23 From A grade 6 student:In adding fractions, how do I rewrite the fractions so that the denominators are equal? The problem is 3/4 + 1/6 = The other problem is 11/18 + 4/9 =Answered by Penny Nom. Making fruit salad 2000-03-29 From A grade 5 student:Miss.Muffet males a fruit salad by adding 31/2 pounds of grapes and 4 1/4 pounds of apples to every 2 1/4 pounds of melon. How many pounds of grapes does she use in 50 pounds of fruit salad? Answered by Claude Tardif. Adding Fractions 1998-10-15 From Lindsay:please help me!!!!Answered by Harley Weston. Adding Fractions 1998-10-03 From Pam Bailey:Can you help me simplfy this? (1/2a + 1/3b) - (1/4a - 1/5b) + (1/6a - 1/7) thanxAnswered by Harley Weston. Using your fingers 1998-04-21 From Ian Sutherland:My 7-year-old son, in Grade 2, constantly uses his fingers to count.  I know for now this is a useful crutch but at what point should he stop? Answered by Diane Hanson.