Question

Which symbol correctly compares these fractions? 13 20 ___ 7 10 A. < B. > C. = D. +

Answer 1

A. <

Explanation:

13/20 < 7/10 = 14/20

___

If you multiply each numerator by the denominator of the other, the ordering of the products is the same as the ordering of the fractions with the corresponding numerators. Here, that means we're comparing ...

13·10 vs. 7·20

130 vs. 140

130 < 140 . . . . so, ...

13/20 < 7/10