5 7/15-(7 1/12-(4 29/60-(2 1/5-1 5/6)))

Question

5 7/15-(7 1/12-(4 29/60-(2 1/5-1 5/6)))

Answer 1

Переводим все дроби в неправильные и приводим к общему знаменателю 60.
5 7/15 = (5*15+7)/15 = 82/15 = 82*4/60 = 328/60
7 1/12 = (7*12+1)/12 = 85/12 = 85*5/60 = 425/60
4 29/60 = (4*60+29)/60 = 269/60
2 1/5 = (2*5+1)/5 = 11/5 = 11*12/60 = 132/60
1 5/6 = (6+5)/6 = 11/6 = 110/60
Теперь считаем
328/60 - (425/60 - (269/60 - (132/60 - 110/60))) = 328/60 - (425/60 - (269/60 - 22/60)) =
= 328/60 - (425/60 - 247/60) = 328/60 - 178/60 = 150/60 = 15/6

Comments

6 13/24-((14 7/24-10 31/48)-(2 3/4-1 7/12))-1 1/16

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плиз

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2 3/4 - 1 7/12 = 1 3/4 - 7/12 = 7/4 - 7/12 = (21-7)/12 = 14/12 = 7/6

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14 7/24-10 31/48 = 4 7/24 - 31/48 = 4 14/48 - 31/48 = 4 - 17/48 = 3 31/48

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3 31/48 - 7/6 = 2 31/48 - 1/6 = 2 31/48 - 8/48 = 2 23/48

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6 13/24 - 2 23/48 - 1 1/16 = (6 - 2 - 1) + 26/48 - 23/48 - 3/48 = 3 + 0/48 = 3

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дальше пожалосто

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плиз

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спасибо огромное очень помогли

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пожалуйста огромное