Question

Помогите пожалуйста 9/14+9/21+9/35

Answer 1

$\frac{9}{14} + \frac{9}{21} = \frac{27}{42} + \frac{18}{42} = \frac{45}{42} \\ = 1 \frac{3}{42} = 1 \frac{1}{14}$

$1 \frac{1}{14} + \frac{9}{35} = 1 \frac{5}{70} + \frac{18}{70} = 1 \frac{23}{70}$