Решите уравнение. 1) 4/5 х = 8/15; 2) 7х = 3/8;

1) 4/5 х = 8/15;
х = 8/15 : 4/5;
х = 8/15 * 5/4
х = 2/3.

2) 7х = 3/8;
х = 3/8 : 7;
х = 3/8 * 1/7;
х = 3/56.

3) 3/11х = 9;
х = 9 : 3/11;
х = 9 * 11/3;
х = 33.

4) х : 1(13/14) = 1(17/18);
х = 1(17/18) * 1(13/14);
х = 35/18 * 27/14.
х = 3(3/4).

5) 2(5/8) : х = 1(19/20);
х = 2(5/8) : 1(19/20)
х = 21/8 * 20/39;
х = 1(9/26).

6) 1(8/9)х = 6,8;
х = 6,8 : 1(8/9);
х = 68/10 * 9/17;
х = 3(3/5).