(4 1/6 - 1 1/3 : 2/5) * 2/5. Created by Zhilenko07. matematika-ru

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KUKU2321

Ответ:

-2

Пошаговое объяснение:

(4 1/6 - 1 1/3 : 2/5) * 2/5= 4 1/6* 2/5- 1 1/3 =25/6*2/5-11/3=5/3-11/3=-6/3=-2

1 votes Thanks 1

vakhitovartem

Ответ:

$\frac{1}{3}$

Пошаговое объяснение:

Решение:

$(4\frac{1}{6}-1\frac{1}{3}:\frac{2}{5})*\frac{2}{5}$

1) $1\frac{1}{3}:\frac{2}{5}=\frac{3*1+1}{3}:\frac{2}{5}=\frac{3+1}{3}:\frac{2}{5}=\frac{4}{3}:\frac{2}{5}=\frac{4*5}{3*2}=\frac{20}{6}$

2) $4\frac{1}{6}-\frac{20}{6}=\frac{6*4+1}{6}-\frac{20}{6}=\frac{24+1}{6}-\frac{20}{6}=\frac{25}{6}-\frac{20}{6}=\frac{5}{6}$

3) $\frac{5}{6}*\frac{2}{5}=\frac{5*2}{6*5}=\frac{10}{30}=\frac{10:10}{30:10}=\frac{1}{3}$

1 votes Thanks 5

Zhilenko07 спасибо