Задание 113 пж, срочно!
1)6:6=90:75 2)1/5:1 целая 7/50=5/57:1/2 3)3/0,8=15/4 4)5-3 целых 2/7 / 4=3/7
1) 6 : 5 = X : 75
X = 6 : 5 * 75
X = 90
2) a : 1 7/50 = 5/57 : 1/2
a = 5/57 : 1/2 * 17/50
a = 17/285
3) x/0,8 = 15/4
4 *x = 15 * 0,8
4x = 12
x = 12 : 4
x = 3
4) (5 - y)/ 4 = 3/7
5 -y = 3/7 * 4
5-y = 12/7
y = 5 - 12/7
y = 23/7
y = 3 2/7