Question

(7-1 1/2 *2 2/5):2 4/15

Answer 1

Ответ:

$1$

Пошаговое объяснение:

$(7 - 1 \frac{1}{2} \times 2 \frac{2}{5} ) \div 2 \frac{4}{15}$

$1 \frac{1}{2} \times 2 \frac{2}{5} = \frac{3}{2} \times \frac{12}{5} = \frac{36}{10} = 3 \frac{6}{10} = 3.6$

$7 - 3.6 = 3.4$

$3.4 \div 2 \frac{4}{15} = 3 \frac{4}{10} \div 2 \frac{4}{15} = \frac{34}{10} \div \frac{34}{10} = \frac{34}{10} \times \frac{10}{34} = \frac{1}{1} \times \frac{1}{1} = 1$