Dimensional Analysis Problem Help

Question

A student has a body mass of 65.6 kilograms and 22.5 percent body fat, how many pounds of body fat does the student have?

1 kg = 2.205 lbs

Answer 1

Just keep the units with the calculation and cancel them out as you go along:

0.225* 65.6 [kg] * 2.205 [lb/kg]

the kg's cancel, and the result is in lb.