Ответ: 2,8:16,8=0,1667 или28/10:168/10=28*10/10/168=28/168=1/6б) 21/4:13/8=21*8/4*13=42/13=3 3/13в) 121/100:32/3=121*3/100*32=363/3200

Ответ: 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