 Quandaries and Queries Joe Parent Son in the 11th grade I am helping my son with his converting rational numbers in the form of A/B where A and B are integers and B not equal to zero I think I am doing this right but I am not sure so below are the problems and our answers are beside them, please let me know if these answerers are correct 2. 0.18 = 9/50 4. 9 = 9/1 6. 0 = 0/1 8. -3 1/3 = -9/1 10. -2.3 = -2 3/10 = - 23/1 Are our answerers correct Hi Joe, Questions 2, 4 and 6 are correct. In question 8 the number you have is negative three and a third. Ignore the negative sign for the moment and concentrate on three and a third. I want to think about three and a third pizzas. I first cut each of the three whole pizzas into thirds. Thus I have 3 thirds and 3 thirds and 3 thirds and 1 third or 10 thirds of a pizza. Thus 3 1/3 = 10/3 Using mathematical symbols rather than pizzas what I have done is 3 1/3 = 3 + 1/3 = 9/3 + 1/3 = 10/3 Finally, keeping the negative sign -3 1/3 = -(3 + 1/3) = - ( 9/3 + 1/3) = -10/3 Can you do problem 10 now? this time you work in tenths rather than thirds. Penny Go to Math Central