Выполните действия 3/4*1/5 7/20*1 1/3 8*5/6 2/3:4/5 3/8:9 (3 1/3)³

1) 3/4 * 1/5 = 3/(4 * 5) = 3/20;

2) 7/20 * 1 1/3 = 7/20 * 4/3 = (7 * 4)/(20 * 3) = 7/(5 * 3) = 7/15;

3) 8 * 5/6 = 4 * 5/3 = 20/3;

4) 2/3 : 4/5 = 2/3 * 5/4 = (2 * 5)/(3 * 4) = 5/6;

5) 3/8 : 9 = 3/(8 * 9) = 1/(8 * 3) = 1/24;

6) (3 1/3)^3 = (10/3)^3 = 10^3/3^3 = (10 * 10 * 10)/(3 * 3 * 3) = 1000/27.