Сравните дроби 1/7 и 4/21, 3/5 и 8/15,3/5 и 11/20, 4/7 и 16/28, 4/9 и 8/15, 5/12 и 7/18, 37/115 и 38/175, 9/65 и 16/117

Question

Математика

Илия

27 ноября, 20:36

Сравните дроби 1/7 и 4/21, 3/5 и 8/15,3/5 и 11/20, 4/7 и 16/28, 4/9 и 8/15, 5/12 и 7/18, 37/115 и 38/175, 9/65 и 16/117

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Элюша · Answer 1

1/7 и 4/21 = 21/147 и 28/147 1/7 < 4/21

3/5 и 8/15 = 9/15 и 8/15 3/5>8/15

3/5 и 11/20 = 12/20 и 11/20 3/5>11/20

4/7 и 16/28 = 16/28 и 16/28 4/7=16/28

4/9 и 8/15 = 20/45 и 24/45 4/9<8/15

5/12 и 7/18 = 45/108 и 42/108 5/12>7/18

37/115 и 38/175 = 1295/4025 и 874/4025 37/115>38/175

9/65 и 16/117 = 81/585 и 80/585 9/65>16/117