10 - 3.75*(2 1/3 +1.4)/(-1 5/9)= помогите пжпжп. Created by fvvfvfvfvf. matematika-ru

поэтапно.1 действие.2 действие.3 действие.4 действие.

9)= помогите пжпжп...

fvvfvfvfvf @fvvfvfvfvf

July 2022 1 5 Report

10 - 3.75*(2 1/3 +1.4)/(-1 5/9)= помогите пжпжп

Answers & Comments

dduoggih

поэтапно.

$10 - 3.75 \times (2 \frac{1}{3} + 1.4) \div ( - 1 \frac{5}{9} ) =$

1 действие.

$2 \frac{1}{3} + 1.4 = \frac{7}{3} + \frac{7}{5} = \frac{7 \times 5 + 7 \times 3}{15} = \frac{56}{15}$

2 действие.

$- 3.75 \times \frac{56}{15} = - \frac{15}{4} \times \frac{56}{15} = - 14$

3 действие.

$- 14 \div ( - 1 \frac{5}{9} ) = - 14 \div ( - \frac{14}{9} ) = - 14 \times ( - \frac{9}{14} ) = 9$

4 действие.

$10 - 9 = 1$

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