Question

6 3/8 ∙1 7/17-2 3/8 ∶1 1/4 +2/5

Answer 1

$6 \frac{3}{8} \times 1 \frac{7}{17} - 2 \frac{3}{8} \div \frac{11}{4} + \frac{2}{5} = \frac{51}{8} \times \frac{7}{17} - \frac{19}{8} \times \frac{4}{11} + \frac{2}{5} = \frac{3}{8} \times 7 - \frac{19}{2} \times \frac{1}{11} + \frac{2}{5} = \frac{21}{8} - \frac{19}{22} + \frac{2}{5} = \frac{951}{440}$