Question

Вычислите:
1) (5/7)²*7/15;
2) (3/4)²*32/45;
3) (1/2)²*4/5;
4) (2 5/7)²*14/19;
5) (2 1/3)²*27/98;
6) (8/11)²*11/32;
7) (3/10)²*5/6;
8) (2/3)²*15/24;