Question

найдите значение выражений 30-23,1:(5 7/10 -4 6/12)

Answer 1

Ответ:

$30 - 23.1 \div (5 \frac{7}{10} - 4 \frac{6}{12} ) = 30 - 23.1 \div (5 \frac{7}{10} - 4 \frac{1}{2} ) = 30 - 23.1 \div (5 \frac{7}{10} - 4 \frac{5}{10} ) = 30−23.1÷1 \frac{2}{10} = 30−23.1÷1 .2 = 30 - \frac{231 \times 10}{10 \times 12} = 30 - \frac{77}{4} = 30 - 19 \frac{1}{4} = 29 - 19 + \frac{4 - 1}{4} = 10 \frac{3}{4} = 10.75$