A foot is broken up into twelve equal parts called inches. On a tape measure, each inch is divided into sixteenths. To add or subtract, arrange the feet over feet, inches over inches, and any fractions above another. When carrying inches remember there are 12 inches in a foot, and to bor- row a foot gives you 12 inches (not 10!). .. btw it's not the answer to your problem just help solve ..
