Помогите нужно вычислить 1)2 11\17 * 2 4\15-(13,7*1,5-21,55) 2)(3\20+4 1\15)+25\42*2,1. Created by marinarudakova2. matematika-ru

Помогите нужно вычислить 1)2 11\17 * 2 4\15-(13,7*1,5-21,55) 2)(3\20+4 1\15)+2...

marinarudakova2 @marinarudakova2

July 2022 1 23 Report

Помогите нужно вычислить

1)2 11\17 * 2 4\15-(13,7*1,5-21,55)
2)(3\20+4 1\15)+25\42*2,1

Answers & Comments

Regent1828

Verified answer

1. 2 11/17 * 2 4/15 - (13,7 * 1,5 - 21,55) = 45/17 * 34/15 - (20,55 - 21,55) =
= 3*2 + 1 = 7

2. (3/20 + 4 1/15) + 25/42 * 2,1 = (9/60 + 4 4/60) + 25/42 * 21/10 =
= 4 13/60 + 5/4 = 4 13/60 + 1 15/60 = 5 28/60 = 5 7/15

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Answer

Answers & Comments

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