Quandaries and Queries 

Name: Jim
Question: If A/30 + B/105 = (7A + 2B)/x and A, B, and x are integers greater than 1, what must x equal? There is probably something fast and reasonably simple, but I don't see it. Hi Jim, From the way this problem is worded I would change the numerators of the two fractions to 7A and 2B, respectively. That is, for the first fraction multiply the numerator and denominator by 7 to get 

