Пошаговое объяснение:
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Ответ:
10 . a) 3 9/14 : 2 3/7 * 2/3 = 51/14 : 17/7 * 2/3 = 51/14 * 7/17 * 2/3 = 1 ;
б) 1 7/8 * 4/9 : 8 1/3 = 15/8 * 4/9 : 25/3 = 5/6 : 25/3 = 5/6 * 3/25 = 1/10 ;
в) 3 3/8 : 1 1/4 : 3/5 = 27/8 : 5/4 :3/5 = 27/8 * 4/5 * 5/3 = 9/2 = 4 1/2 .
11 . Якщо a = 3 3/14 , b = 2/15 , то a : 1 3/7 - 6/20 : b = 3 3/14 : 1 3/7 -
- 6/20 : 2/15 = 45/14 : 10/7 - 6/20 * 15/2 = 45/14 * 7/10 - 9/4 = 9/4 - 9/4 = 0 .
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Answers & Comments
Пошаговое объяснение:
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Ответ:
Пошаговое объяснение:
10 . a) 3 9/14 : 2 3/7 * 2/3 = 51/14 : 17/7 * 2/3 = 51/14 * 7/17 * 2/3 = 1 ;
б) 1 7/8 * 4/9 : 8 1/3 = 15/8 * 4/9 : 25/3 = 5/6 : 25/3 = 5/6 * 3/25 = 1/10 ;
в) 3 3/8 : 1 1/4 : 3/5 = 27/8 : 5/4 :3/5 = 27/8 * 4/5 * 5/3 = 9/2 = 4 1/2 .
11 . Якщо a = 3 3/14 , b = 2/15 , то a : 1 3/7 - 6/20 : b = 3 3/14 : 1 3/7 -
- 6/20 : 2/15 = 45/14 : 10/7 - 6/20 * 15/2 = 45/14 * 7/10 - 9/4 = 9/4 - 9/4 = 0 .