Сделайте уравнение 1),4 целых - 5 седьмых - ( м -

1) 4 - 5/7 - (m - 1) = 11/14.

4 - 5/7 - m + 1 = 11/14.

- m = 11/14 - 3 + 5/7.

- m = 11/14 - (3 * 14)/14 + (5 * 2)/14.

- m = 11/14 - 42/14 + 10/14.

- m = (11 - 42 + 10)/14.

- m = - 21/14.

m = 3/2 = 1.5.

Ответ: m = 1.5.

2) 1 5/6 - (у + 2/3) = 1 1/2.

1 5/6 - y - 2/3 = 1 1/2.

y = 1 5/6 - 2/3 - 1 1/2.

y = (1 * 6 + 5)/6 - 2/3 - (1 * 2 + 1)/2.

y = 11/6 - 2/3 - 3/2.

y = 11/6 - (2 * 2)/6 - (3 * 3)/6.

y = 11/6 - 4/6 - 9/6.

y = (11 - 4 - 9)/6.

y = - 2/6 = - 1/3.

Ответ: у = - 1/3.