Найдите разность смешаныз чисел
4целых 1/6-2целых 4/21
4целых 3/35-2целых5/14
7целых1/16-3целых5/24
4целых 1/6-2целых 4/21
4целых 3/35-2целых5/14
7целых1/16-3целых5/24
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Answers & Comments
▪4 целых 1/6 - 2 целых 4/21 = 4 целых 7/42 - 2 целых 8/42 = (4-2)+(7/42-8/42)= 2 - 1/42 = 1 целая 42/42 - 1/42= 1 целая 41/42;
▪4 целых 3/35 - 2 целых 5/14 = 4 целых 6/70 - 2 целых 25/70 = (4-2) + (6/70 - 25/70)=2 - 19/70=1 целая 70/70 - 19/70 = 1 целая 51/70;
▪7 целых 1/16 - 3 целых 5/24=7 целых 3/48 - 3 целых 10/48 = 4+(3/48-10/48)=4 - 7/48 = 3 целых 48/48 - 7/48 = 3 целых 41/48
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2 способ:
▪4 целых 1/6 - 2 целых 4/21 = 25/6 - 46/21 = 175/42 - 92/42 = 83/42 = 1 целая 41/42;
▪4 целых 3/35 - 2 целых 5/14 = 143/35 - 33/14 = 286/70 - 165/70 = 121/70 = 1 целая 51/70;
▪7 целых 1/16 - 3 целых 5/24= 113/16 - 77/24 = 339/48 - 154/48 = 185/48 = 3 целых 41/48