Question

Решите дробь
2/15+1/21=

Answer 1

Ответ:

$\frac{2}{15} + \frac{1}{21} = \frac{7 \times 2 + 5 \times 1} { 7 \times 15} = \frac{14 + 5}{105} = \frac{19}{105}$