Question

Помогите, в школе задали, а меня не было (((

1/2 - 4/2 - 6/2 = -9/2
2/5 - 3/5 + 3/5 = 2/5
7/7 - 1/7 - 7/7 = -1/7
5/1 - 7/1 + 1/1 = -1/1

Answer 1

1/2 - 4/2 - 6/2 = (1-4-6)/3=-9/2

2/5 - 3/5 + 3/5 = (2-3+3)/2=2/5

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

5/1 - 7/1 + 1/1 =(5-7+1)/2= -1/1=-1

Answer 2

1) =(1-4-6)/2=(-9)/2=-9/2

2) =(2/5)+0=2/5

3) =0-(1/7)=-1/7

4) =(5-7+1)/1=(-1)/1=-1/1=-1

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Удачи))