Решите уравнение а) 5/16:z=3/4 б) 1 1/9m+5/6=1 1/2 в) 8/15y-3/10y+3/5y=1/2

А) 5/16:z = 3/4

z = 5/16 : 3/4

z = 5/16 * 4/3

z = 5/12

б) 1 1/9m + 5/6 = 1 1/2

1 1/9 m = 1 1/2 - 5/6

1 1/9 m = 1 6/12 - 10/12

1 1/9m = 8/12 = 2/3

m = 2/3 : 10/9

m = 2/3 * 9/10

m = 3/5

8/15y - 3/10y + 3/5y = 1/2

16/30y - 9/30y + 18/30y = 1/2

25/30y = 1/2

5/6y = 1/2

y = 1/2 : 5/6

y = 1/2 * 6/5

y = 3/5