2) 6/7 + 3/11 - 1

3) (6/15 + 2/3) + (1/4 + 1/5)

Question

Математика

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22 августа, 18:50

2) 6/7 + 3/11 - 1

3) (6/15 + 2/3) + (1/4 + 1/5)

+5

Ответы (1)

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Саломея · Answer 1

6/7 + 3/11 - 1 = 66/77 + 21/77 - 1 = 87/77 - 1 = 1 10/17 - 1 = 10/17

(6/15 + 2/3) + (1/4 + 1/5) = 1 31/60

1) 6/15 + 2/3 = 6/15 + 10/15 = 16/15 = 1 1/15

2) 1/4+1/5 = 5/20 + 4/20 = 9/20

3) 1 1/15 + 9/20 = 1 4/60 + 27/60 = 1 31/60

2) 6/7 + 3/11 - 13) (6/15 + 2/3) + (1/4 + 1/5)

2) 6/7 + 3/11 - 1

3) (6/15 + 2/3) + (1/4 + 1/5)