3/5 * х = 6/7 Х : (1 2/3 + 4/9) = 9/38 (8 1/2 - 7 1/4) * х = 5/12

Question

Accepted Answer

1.

(3/5) * Х = 6/7;

Х / 5 = 2/7;

Х = 10/7 = 1(3/7).

Ответ: 1(3/7).

2.

Х / (1(2/3) + 4/9) = 9/38;

Х / (5/3 + 4/9) = 9/38;

Х / (19/9) = 9/38;

9 * Х/19 = 9/38;

Х = 1/2.

Ответ: Х = 1/2.

3.

(8(1/2) – 7(1/4)) * Х = 5/12;

(17/2 – 29/4) * Х = 5/12;

(34/4 – 29/4) * Х = 5/12;

5 * Х/4 = 5/12;

Х = 1/3.

Ответ: Х = 1/3.

Ответы1