## Elementary Technical Mathematics

$1\frac{1}{4}$
Subtracting a negative number is the same as adding its positive equivalent. $\frac{5}{8}-\frac{-5}{8}$ $=\frac{5}{8}+\frac{5}{8}$ $=\frac{10}{8}$ $=1\frac{2}{8}$ $=1\frac{1}{4}$