Если что то не понятно пиши
Пошаговое объяснение:
1.
3/4 - 1/2 = 3/4 - 2/4 = 1/4
7/9 - 5/12 = 28/36 - 15/36 = 13/36
-1/4 + 1/5 = -5/20 + 4/20 = -1/20 = -0,05
3/55 - 21/22 = 6/110 - 105/110 = -99/110
2.
3/5 - 7/10 = 30/50 - 35/50 = -5/50 = -0,1
7/20 - 7/12 = 21/60 - 35/60 = -14/20 = -0,7
5/12 - 7/8 = 10/24 - 21/24 = -11/24
-2/35 + 11/21 = -6/105 + 55/105 = 49/105
3.
-1/6 - 5/12 = -2/12 - 5/12 = -7/12
11/12 - 10/11 = 121/132 - 120/132 = 1/132
-1/6 - 1/15 = -5/30 - 2/30 = -7/30
-1/42 - 2/63 = -9/378 - 12/378 = -21/378
1.)
2.)
3.)
Если что то не понятно пиши
Пошаговое объяснение:
1.
3/4 - 1/2 = 3/4 - 2/4 = 1/4
7/9 - 5/12 = 28/36 - 15/36 = 13/36
-1/4 + 1/5 = -5/20 + 4/20 = -1/20 = -0,05
3/55 - 21/22 = 6/110 - 105/110 = -99/110
2.
3/5 - 7/10 = 30/50 - 35/50 = -5/50 = -0,1
7/20 - 7/12 = 21/60 - 35/60 = -14/20 = -0,7
5/12 - 7/8 = 10/24 - 21/24 = -11/24
-2/35 + 11/21 = -6/105 + 55/105 = 49/105
3.
-1/6 - 5/12 = -2/12 - 5/12 = -7/12
11/12 - 10/11 = 121/132 - 120/132 = 1/132
-1/6 - 1/15 = -5/30 - 2/30 = -7/30
-1/42 - 2/63 = -9/378 - 12/378 = -21/378
Пошаговое объяснение:
1.)
2.)
3.)