Question

Найлите значение выражения 7/12:(1/4-2/9)

Answer 1

$\frac{7}{12} \div ( \frac{1}{4} - \frac{2}{9} ) = \frac{7}{12} \div \frac{1}{36} = \frac{7}{12} \times 36 = 7 \times 3 = 21$

Answer 2

7/12÷(1/4-2/9)=21

1) 1/4-2/9=9/36-8/36=1/36

2) 7/12÷1/36=7/12*36/1=21

Ответ: 21