Question

Решие пример с дробями  по действиям:

 

(3 1/5*1 1/24+3*5/6)*4/21-1 1/9

 

 

Answer 1

3 1/5 * 1 1/24 = 16/5 * 25/24 = (16*25)/(5*24)=400/120=10/3

3*5/6=15/6

10/3+15/6=20/6+15/6=(20+15)/6=35/6

35/6 * 4/21= (35*4)/(6*21)=140/126 = 70/63

70/63 - 1 1/9= 70/63 - 10/9 = 70/63 - 70/63 = 0