Дроби 1) 3/4-1/1+1/2, 2) 4/9+5/6-3/4, 3) 4/15-2/45+7/9, 4) 6/7-1/4+5/14, 6) 11/12-1/9+1/4, 5) 7/10+9/14-3/35,

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Математика

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27 декабря, 07:45

Дроби 1) 3/4-1/1+1/2, 2) 4/9+5/6-3/4, 3) 4/15-2/45+7/9, 4) 6/7-1/4+5/14, 6) 11/12-1/9+1/4, 5) 7/10+9/14-3/35,

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Рема · Answer 1

1) 3/4 - 1/1 + 1/2 = 3/4 - 1 + 2/4 = 5/4 - 1 = 1/4

2) 4/9 + 5/6 - 3/4 = 16/36 + 30/36 - 37/36 = 9/36 = 1/4

3) 4/15 - 2/45 + 7/9 = 12/45 - 2/45 + 35/45 = 45/45 = 1

4) 6/7 - 1/4 + 5/14 = 24/28 - 7/28 + 10/28 = 27/28

5) 7/10 + 9/14 - 3/35 = 49/70 + 45/70 - 6/70 = 88/70 = 1 18/70 = 1 9/35

6) 11/12 - 1/9 + 1/4 = 33/36 - 4/36 + 9/36 = 38/36 = 1 2/36 = 1 1/18