Вычислите:
1) 4/15 + 3/4 =
2) 5/6 - 9/14 =
3) 4 целых 4/7 + 6 целых 1/4 =
4) 5 целых 7/8 - 3 целых 5/6 =
1) 4/15 + 3/4 =
2) 5/6 - 9/14 =
3) 4 целых 4/7 + 6 целых 1/4 =
4) 5 целых 7/8 - 3 целых 5/6 =
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4/15+3/4=16/60+45/60=16+45/60=61/60=1 1/60
5/6-9/14=35/42-27/42=8/42=4/21
4 4/7+ 6 1/4=4 16/28+6 7/28=10 23/28
5 7/8-3 5/6=5 21/24-3 20/24=2 1/24