Question

выполни действие 9/11-2/7

Answer 1

Ответ:63/77-22/77=41/77

Answer 2

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

удачи))