Question

Помогите решить пример.
$- frac{5}{6} + frac{3}{8}=?$
$-2 frac{5}{7} + 1frac{3}{14}=?$

Answer 1

$- frac{5}{6} + frac{3}{8} = frac{-20+9}{24} = frac{-11}{24}$

Answer 2

№2?

Answer 3

№2=-19/7+17/14=-21/14=-3/2

Answer 4

$-2 frac{5}{7} +1 frac{3}{14} =-2 frac{10}{14} +1 frac{3}{14} =-1 frac{7}{14}=-1 frac{1}{2}$