Question

Вычислите 5/7-9/16:21/26

Answer 1

Ответ:

9/16:21/26=9/16*26/21=39/56

5/7-39/56=40/56-39/56=1/56

Пошаговое объяснение:

Answer 2

$\frac{5}{7} - \frac{9}{16} \div \frac{21}{26 } = \frac{5}{7} - \frac{9}{16} \times \frac{26}{21} = \frac{5}{7} - \frac{3}{8} \times \frac{13}{7} = \frac{5}{7} - \frac{39} {56} = \frac{1}{56}$