Question

1. Найдите значение выражения:

а) 2,8/16,8; б) 21/4 / 13/8; в) 1,21 / 32/3.

Answer 1

2,8:16,8=0,1667
 или
28/10:168/10=28*10/10/168=28/168=1/6
б) 21/4:13/8=21*8/4*13=42/13=3 3/13
в) 121/100:32/3=121*3/100*32=363/3200

Answer 2

28/10:168/10=14/5:84/5=14/5*5/84=1/6.
21/4:13/8=21/4*8/13=42/13=3 целых 3/13.
121/100:32/3=121/100*3/32=363/3200