Question

Sally weighs 15 7/10 pounds Cocoa weighs 13 3/5 how much more does sally weigh than cocoa

Answer 1

15 7/10-12 3/5

convert into improper fractions

157/10-63/5

denominator's must be same to subtract

157/10-126/10

31/10

Sally weights 31/10 more pounds or 3.1 more pounds

Answer 2

2.1 pounds more

Explanation:

15.7 - 13.6 = 2.1