Question

Avețu 5 puncte si corona ​

Answer 1

Răspuns:

Explicație pas cu pas:

3/9 + 4/9 = 7/9

2/15 + 3/15 + 4/15 = 9/15 = 3/5

17/24 - 5/24 = 12/24 = 1/2

15/8 - 9/8 + 2/8 = 8/8 = 1

23/40 - (11/40 + 9/40) = 23/40 - 20/40 = 3/40

1 + (12/16 - 9/16) = 1 + 3/16 = 16/16 + 3/16 = 19/16

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a + 5/6 = 11/6

a = 11/6 - 5/6 = 6/6 = 1

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17/9 - b = 11/9

b = 17/9 - 11/9 = 6/9 = 2/3

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(7/8 - 1/8) - c = 2/8

6/8 - c = 2/8

c = 6/8 - 2/8 = 4/8 = 1/2