СРОЧНО ДУЖЕ СРОЧНО ДВАЮ 100 БАЛІВ
Ответы
Пошаговое объяснение:
№1
5/9 * 4/7 = 20/63
15/17 * 34/45 = 1/1 * 2/3 = 2/3
1 1/6 * 1 5/7 = 7/6 * 12/7 = 1/1 * 2/1 = 2/1 = 2
2 5/11 * 1 19/36 = 27/11 * 55/36 = 3/1 * 5/4 = 15/4 = 3 3/4
3/8 * 8/11 = 3/1 * 1/11 = 3/11
0,2 * 5/7 = 2/10 * 5/7 = 2/2 * 1/7 = 2/14 = 1/7
№2
1 3/8 * 1 2/7m * 2/3 = 11/8 * 9/7m * 2/3 = 11/8 * 3/7m * 2/1 = 66/56m = 33/28m = 1 5/28m
8 * 2/5 * 1 9/16n = 16/5 * 25/16m = 1/1 * 5/1m = 5/1m = 5m
№3
1) 2 2/3 - 2 2/9 = 2 6/9 - 2 2/9 = 4/9
2) 2 - 1 1/2 = 1 2/2 - 1 1/2 = 1/2
3) 4/9 * 1/2 = 4/18 = 2/9
Ответ:
Пошаговое объяснение:
№1
5/9 * 4/7 = 20/63
15/17 * 34/45 = 1/1 * 2/3 = 2/3
1 1/6 * 1 5/7 = 7/6 * 12/7 = 1/1 * 2/1 = 2/1 = 2
2 5/11 * 1 19/36 = 27/11 * 55/36 = 3/1 * 5/4 = 15/4 = 3 3/4
3/8 * 8/11 = 3/1 * 1/11 = 3/11
0,2 * 5/7 = 2/10 * 5/7 = 2/2 * 1/7 = 2/14 = 1/7
№2
1 3/8 * 1 2/7m * 2/3 = 11/8 * 9/7m * 2/3 = 11/8 * 3/7m * 2/1 = 66/56m = 33/28m = 1 5/28m
8 * 2/5 * 1 9/16n = 16/5 * 25/16m = 1/1 * 5/1m = 5/1m = 5m
№3
1) 2 2/3 - 2 2/9 = 2 6/9 - 2 2/9 = 4/9
2) 2 - 1 1/2 = 1 2/2 - 1 1/2 = 1/2
3) 4/9 * 1/2 = 4/18 = 2/9