Question

Ricardo decided to buy a larger, 1 1/2 pound package of ground coffee rather than a 7/8 pound package. How much heavier is a large package than a smaller one

Answer 1

5/8 lb

Explanation:

We can subtract the numbers by first expressing them using a common denominator of 8.

1 1/2 - 7/8 = 1 4/8 - 7/8 = 12/8 - 7/8 = (12 -7)/8 = 5/8

The large package is 5/8 pound heavier.