Вычислите: 1) 3 - 3/22=2) 5 - 4/5=3) 7 - 6/7=4) 10 - 2/13=5) 11 - 7/11=6) 8 - 3/7=

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Платон Соколов

Математика

16 декабря, 11:06

Вычислите: 1) 3 - 3/22=2) 5 - 4/5=3) 7 - 6/7=4) 10 - 2/13=5) 11 - 7/11=6) 8 - 3/7=

+1

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Дуит · Answer 1

1) 3 - 3/22 = 2 + 1 - 3/22 = 2 + 22/22 - 3/22 = 2 + (22/22 - 3/22) = 2 + (22 - 3) / 22 = 2 + 19/22 = 2 19/22;

2) 5 - 4/5 = 4 + 1 - 4/5 = 4 + 5/5 - 4/5 = 4 + (5/5 - 4/5) = 4 + (5 - 4) / 5 = 4 + 1/5 = 4 1/5;

3) 7 - 6/7 = 6 + 1 - 6/7 = 6 + 7/7 - 6/7 = 6 + (7/7 - 6/7) = 6 + (7 - 6) / 7 = 6 + 1/7 = 6 1/7;

4) 10 - 2/13 = 9 + 1 - 2/13 = 9 + 13/13 - 2/13 = 9 + (13/13 - 2/13) = 9 + (13 - 2) / 13 = 9 + 11/13 = 9 11/13;

5) 11 - 7/11 = 10 + 1 - 7/11 = 10 + 11/11 - 7/11 = 10 + (11/11 - 7/11) = 10 + (11 - 7) / 11 = 10 + 4/11 = 10 4/11;

6) 8 - 3/7 = 7 + 1 - 3/7 = 7 + 7/7 - 3/7 = 7 + (7/7 - 3/7) = 7 + (7 - 3) / 7 = 7 + 4/7 = 7 4/7