Question

A one kilogram object weighs about 2 1/5 pounds. Find the weight, in pounds, of a computer monitor with mass 7 3/8 kilograms.

Answer 1

if 1 kg = 2 1/5 pounds

7 3/8 kg = x pounds

Equal ratios: kg/pounds

1 / (2 1/5) = 7 3/8 / x

Solve for x.

Cross multiply

1 * x = 7 3/8 * 2 1/5

x = 16 9/40 pounds