3/5x1, 3/5x1/2, 3/5x1/4, 3/5x2/5, 3/5x 1 1/2, 0.2x1/4, 0.2x2/5, 0.2x 1 1/2

№1.

3/5 * 1 = 3/5 * 1/1 = (3 * 1) / (5 * 1) = 3/5;

№2.

3/5 * 1/2 = (3 * 1) / (5 * 2) = 3/10 = 0,3;

№3.

3/5 * 1/4 = (3 * 1) / (5 * 4) = 3/20 = 0,15;

№4.

3/5 * 2/5 = (3 * 2) / (5 * 5) = 6/25 = 0,24;

№5.

3/5 * 1 1/2 = 3/5 * 3/2 = (3 * 3) / (5 * 2) = 9/10 = 0,9;

№6.

0,2 * 1/4 = 2/10 * 1/4 = 1/10 * 1/2 = (1 * 1) / (10 * 2) = 1/20 = 0,05;

№7.

0,2 * 2/5 = 2/10 * 2/5 = 2/5 * 1/5 = (2 * 1) / (5 * 5) = 2/25 = 0,08;

№8.

0,2 * 1 1/2 = 0,2 * 3/2 = 2/10 * 3/2 = 1/5 * 3/2 = (1 * 3) / (5 * 2) = 3/10 = 0,3.