Найдите разность 5/9-13/27 3/8-5/24 2/5-3/8 5/12-13/72 3/5-1/7 11/12-19/60 9/17-27/68 2/3-5/16 9/10-4/15 4/15-11/60 5/8-1/3/-дробная черта ну пишите

Question

Глеб Сорокин

Математика

23 февраля, 05:03

Найдите разность 5/9-13/27 3/8-5/24 2/5-3/8 5/12-13/72 3/5-1/7 11/12-19/60 9/17-27/68 2/3-5/16 9/10-4/15 4/15-11/60 5/8-1/3/-дробная черта ну пишите

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Амира Воронова · Answer 1

1) 5/9 - 13/27 = (5 * 3) / 27 - 13/27 = 15/27 - 13/27 = (15 - 13) / 27 = 2/27,

2) 3/8 - 5/24 = (3 * 3) / 24 - 5/24 = 9/24 - 5/24 = (9 - 5) / 24 = 4/24 = 1/6,

3) 2/5 - 3/8 = (2 * 8) / 40 - (3 * 5) / 40 = 16/40 - 15/40 = (16 - 15) / 40 = 1/40,

4) 5/12 - 13/72 = (5 * 6) / 72 - 13/72 = 30/72 - 13/72 = (30 - 13) / 72 = 17/72,

5) 3/5 - 1/7 = (3 * 7) / 35 - 5/35 = 21/35 - 5/35 = (21 - 5) / 35 = 16/35,

6) 11/12 - 19/60 = (11 * 5) / 60 - 19/60 = 55/60 - 19/60 = (55 - 19) / 60 = 36/60 = 3/5,

7) 9/17 - 27/68 = (9 * 4) / 68 - 27/68 = 36/68 - 27/68 = (36 - 27) / 68 = 9/68,

8) 2/3 - 5/16 = (2 * 16) / 48 - (5 * 3) / 48 = 32/48 - 15/48 = (32 - 15) / 48 = 17/48,

9) 9/10 - 4/15 = (9 * 3) / 30 - (4 * 2) / 30 = 27/30 - 8/30 = (27 - 8) / 30 = 19/30,

10) 4/15 - 11/60 = (4 * 4) / 60 - 11/60 = 16/60 - 11/60 = (16 - 11) / 60 = 5/60 = 1/12,

11) 5/8 - 1/3 = (5 * 3) / 24 - (1 * 8) / 24 = 15/24 - 8/24 = (15 - 8) / 24 = 7/24.