Question

Помогите плззз прошу вас сильно​

Answer 1

$1) \: \frac{5}{7} + \frac{1}{7} = \frac{5 + 1}{7} = \frac{6}{7}$

$2) \: \frac{2}{9} + \frac{3}{9} = \frac{2 + 3}{9} = \frac{5}{9}$

$3) \: \frac{3}{8} + \frac{2}{8} = \frac{5}{8}$

$4) \: \frac{3}{5} + \frac{2}{5} = \frac{5}{5} = 1$

$5) \: \frac{5}{13} + \frac{4}{13} + \frac{4}{13} = \frac{5 + 4 + 4}{13} = \frac{13}{13} = 1$