## Elementary Technical Mathematics

We convert mixed fractions to improper fractions and use the order of operations to simplify as follows: $$1\frac{3}{8}-\frac{1}{2}\frac{3}{4}+1\frac{5}{8}\div \frac{1}{16}= \frac{11}{8}-\frac{3}{8}+\frac{13}{8}\div \frac{1}{16}\\ =\frac{11-3}{8}+\frac{13}{8}\cdot 16=\frac{8}{8}+26=27.\\ .$$