Question

помогите пожалуйста подробнее если можно

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Answer 1

Ответ:

$\frac{56}{19 - 7.5} = \frac{56}{11.5} = \frac{56}{ \frac{23}{2} } = \frac{112}{23} = 4 \frac{20}{23}$

$\frac{3.7 \times 7.5}{7.4} = 0.5 \times 7.5 = 3.75$

$\frac{0.6 \times 0.08}{1.5 \times 4 \times 0.007} = \frac{0.4}{4 \times 0.0875} = \frac{1}{4 \times 0.21875} = \frac{1}{0.875} = \frac{1}{ \frac{7}{8} } = \frac{8}{7} = 1 \frac{1}{7}$

$0.016 \div (0.24 \times 0.21) = \frac{2}{125} \div 0.0504 = = \frac{2}{125} \div \frac{63}{1250} = \frac{2}{125} \times \frac{1250}{63} = 2 \times \frac{10}{63} = \frac{20}{63}$