Question

512 Вычислите
(-3/4)÷1 1/2
5÷(-5/8)
-3 3/4÷1 1/2
(-6 1/4)÷(-5/8)​

Answer 1

Ответ:

$\frac{3}{4} \div 1 \frac{1}{2} = \frac{3}{4} \div \frac{3}{2} = \frac{3}{4} \times \frac{2}{3} = \frac{2}{4} = \frac{1}{2}$

$5 \div ( - \frac{5}{8} ) = \frac{5}{1} \div ( - \frac{5}{8} ) = \frac{5}{1} \times ( - \frac{8}{5} ) = - 8$

$- 3 \frac{3}{4} \div 1 \frac{1}{2} = - \frac{15}{4} \times \frac{2}{3} = - \frac{5}{2} = - 2 \frac{1}{2}$

$- 6 \frac{1}{4} \div ( - \frac{5}{8} ) = - \frac{25}{4} \div ( - \frac{5}{8} ) = \frac{25}{4} \times \frac{8}{5} = 5 \times 2 = 10$