Ответ:
1) 15 и 5 сокращаются. Остаётся 3/19*2 будет 6/19
2) 17 и 17 сократятся =1/2
3)2/9
4)47/4
5)1
6) 28/5
7)27/2
8)135/8
9)27/2
10) 13/2
11) 8/3
Пошаговое объяснение:
1) 15/19 * 2/5 = 6/19
2) 17/28 * 14/17 = 1/2
3) 26/51 * 17/39 = 442/1989
4) 2 7/20 * 5 = 47/20 * 5/1 = 47/4 = 11 75/100
5) 2 1/5 * 5/11 = 11/5 * 5/11 = 1
6) 3 1/5 * 1 3/4 = 16/5 * 7/4 = 28/5 = 5 6/10
7) 10 1/5 * 1 11/34 = 51/5 * 45/34 = 459/34 = 13 5/10
8) 2 11/12 * 5 11/14 = 35/12 * 81/14 = 135/8 = 16 7/8
9) 2 1/22 * 6 3/5 = 45/22 * 33/5 = 27/2 = 13 1/2
10) 5 5/8 *2 3/5 *4/9 = (45/8 * 13/5)* 4/9 = 107/8 * 4/9 = 107/18 = 5 17/18
11) 1 13/15 *5/8 * 2 2/7 = (28/15 * 5/8) * 16/7 = 7/6 * 16/7 = 8/3 = 2 2/3
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Answers & Comments
Ответ:
1) 15 и 5 сокращаются. Остаётся 3/19*2 будет 6/19
2) 17 и 17 сократятся =1/2
3)2/9
4)47/4
5)1
6) 28/5
7)27/2
8)135/8
9)27/2
10) 13/2
11) 8/3
Пошаговое объяснение:
Ответ:
1) 15/19 * 2/5 = 6/19
2) 17/28 * 14/17 = 1/2
3) 26/51 * 17/39 = 442/1989
4) 2 7/20 * 5 = 47/20 * 5/1 = 47/4 = 11 75/100
5) 2 1/5 * 5/11 = 11/5 * 5/11 = 1
6) 3 1/5 * 1 3/4 = 16/5 * 7/4 = 28/5 = 5 6/10
7) 10 1/5 * 1 11/34 = 51/5 * 45/34 = 459/34 = 13 5/10
8) 2 11/12 * 5 11/14 = 35/12 * 81/14 = 135/8 = 16 7/8
9) 2 1/22 * 6 3/5 = 45/22 * 33/5 = 27/2 = 13 1/2
10) 5 5/8 *2 3/5 *4/9 = (45/8 * 13/5)* 4/9 = 107/8 * 4/9 = 107/18 = 5 17/18
11) 1 13/15 *5/8 * 2 2/7 = (28/15 * 5/8) * 16/7 = 7/6 * 16/7 = 8/3 = 2 2/3
Пошаговое объяснение: