Question

3 1/8 (8-y)-4 5/8(y-16)

Answer 1

   $3\frac{1}{8} (8-y)-4\frac{5}{8} (y-16)=$

$=\frac{25}{8} (8-y)-\frac{37}{8} (y-16)=$

$=\frac{1}{8} *(25* (8-y)-37* (y-16))=$

$=\frac{1}{8} *(200-25y-37y+592)=$

$=\frac{1}{8} *(792-62y)=99-7,75y$