Dimensions expressed in combined feet and inches can usually be added by simply adding the feet, adding the inches separately, and then expressing the inches as a combined value of feet and inches.

Question

Quizplus · Accepted Answer

When adding dimensions expressed in combined feet and inches, we can add the feet and add the inches separately. But if the total inches exceed 12, we need to convert them into feet and add to the total feet. For example, if we want to add 5 ft 9 in and 3 ft 6 in, we would first add the feet (5+3=8) and then add the inches (9+6=15). Since 15 inches is more than a foot, we would subtract 12 inches from the total (15-12=3) and add 1 foot to the total feet (8+1=9). Therefore, the answer would be 9 ft 3 in.

Dimensions Expressed in Combined Feet and Inches Can Usually Be