-2/5-(-3/5
5/6-(-1/6)
-3/7-(+4/7)
5/8-(-7/8)
-1/9-(+2/9) помагите​

1) 1/5

2) 1

3) -1

4) 3/2 или 1,5

5) -1/3

Пошаговое объяснение:

1) -2/5 - (-3/5) = 3/5 - 2/5 = 1/5

2) 5/6 - (-1/6) = 5/6 + 1/6 = 6/6 = 1

3) -3/7 - (+4/7) = -3/7 - 4/7 = -7/7 = -1

4) 5/8 - (-7/8) = 5/8 + 7/8 = 12/8 = 3/2 = 1,5

5) -1/9 - (+2/9) = -1/9 - 2/9 = -3/9 = -1/3

Пошаговое объяснение:

- 2/5 - (- 3/5) = - 2/5 + 3/5 = 1/5

5/6 - (- 1/6) = 5/6 + 1/6 = 6/6 = 1

- 3/7 - ( + 4/7) = - 3/7 - 4/7 = - 7/7 = - 1

5/8 - (- 7/8) = 5/8 + 7/8 = 12/8 = 1целая 4/8 = 1целая 1/2

- 1/9 - (+ 2/9) = - 1/9 - 2/9 = - 3/9 = - 1/3