ПОМОГИТЕ пж очень нада
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(полностью решение)
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1) 7/8-6/8=1/8

2) 1/8 - 2/16 ; 2/16-1/16=1/16

3) 1/16 + 2 1/10= 5/80 + 2 8/80 = 2 13/80

2) 1.4/8 - 7/8 = - 3/8

2.-3/8*8/2 = -3/2 = - 1 1/2

3. - 1 1/2 + 2 = 1/2

3)

1. - 8/10 - 7/10 = - 1 5/10 = - 1 1/2

2. - 3/2*2/1 = - 3

3. - 3 + 3 = 0

4)

1. 6/15 + 5/15 = 11/15

2. 11/15*(-5/1) = - 11/3 = - 3 2/3

3. - 3 2/3 + 4 1/2 = +(4 3/6 - 3 4/6) = 5/6

5)

1. 2/12 + 3/12 = 5/12

2. 1/2*12/5 = 6/5 = 1 1/5 = 1,2

3. 1,7 + 1,2 = 2,9