Question

В) 7/20-7/30 г) 5/12-2/9

Answer 1

Ответ:

$\frac{7}{20} - \frac{7}{30} = \frac{21 - 14}{60} = \frac{7}{60}$

$\frac{5}{12} - \frac{2}{9} = \frac{15 - 8}{36} = \frac{7}{36}$