Выполните действия
1)5/7+0
2) 2/3-2/5
3) 5/6+3/8
4) 19/21-11/15
5) 21/22-3/55
6) 5/42+10/63
7) 11/21-2/35
8) 5/24+7/60
1)5/7+0
2) 2/3-2/5
3) 5/6+3/8
4) 19/21-11/15
5) 21/22-3/55
6) 5/42+10/63
7) 11/21-2/35
8) 5/24+7/60
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Answers & Comments
2 = 10/15-6/15 = 4/15
3 = 20/24+9/24=29/24=1цел 5/24
4 = 95/105-77/105=18/105=6/35
5 = 105/110-6/110=99/110
6 = 15/126+20/126=35/126
7 = 55/105-6/105=49/105
8 = 25/120+14/120=39/120