## Elementary Technical Mathematics

1$\frac{1}{8}$ cups
cups of flour chef have = 3$\frac{3}{8}$ cups of flour chef needs = 2$\frac{1}{4}$ flour left = 3$\frac{3}{8}$ - 2$\frac{1}{4}$ =$\frac{27}{8}$ - $\frac{9}{4}$ =$\frac{27}{8}$ - $\frac{9}{4}\times$ $\frac{2}{2}$ =$\frac{27}{8}$ - $\frac{18}{8}$ =$\frac{9}{8}$ =1$\frac{1}{8}$ cups