Question

выполни действие 9/11-2/7

Answer 1

Ответ:63/77-22/77=41/77

Answer 2

$\frac{9}{11} - \frac{2}{7} = \frac{7 \times 9}{7\times 11} - \frac{11\times 2}{11 \times 7} = \frac{63}{77} - \frac{22}{77} = \frac{41}{77}$

удачи))