Решите уравнение: 3 9/14 / 2 1/7 = x / 1 5/10
1) 3 9/14 : 2 1/7 = 51/14 : 15/7 = 51/30 2) 1 5/10 = 15/10 3) 51/30 = X : 15/10 X = 51/30 • 15/10 X = 765/300 X = 2,55
3 9/14 : 2 1/7 = х : 1 5/10 х= 3 9/14* 1 5/10 : 2 1/7 х = 2 11/20 (или 2,55)