Предмет: Математика, автор: ajlanaamangeldi2

ппжж 1 столбик только помогите

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Ответы

Автор ответа: jekadva

2

Ответ:

Пошаговое объяснение:

$1)(\frac{3}{4} +\frac{1}{20})*\frac{1}{2} = (\frac{15}{20} +\frac{1}{20})*\frac{1}{2} =\frac{16}{20} *\frac{1}{2} =\frac{8}{20} =\frac{2}{5} \\ \\ 2)(\frac{7}{12} -\frac{1}{3})* \frac{16}{19} =(\frac{7}{12} -\frac{4}{12})* \frac{16}{19} =\frac{3}{12} *\frac{16}{19} =\frac{12}{57} =\frac{4}{19}$

ajlanaamangeldi2: спасибки

Автор ответа: Ludmi11a

1

вот. Я постаралась подробно расписать решение

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ajlanaamangeldi2: спасибо

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