Вычислите б) (1\6+1\10+1\15):(3\5-1\3-1\4).

Question

Вычислите б) (1\6+1\10+1\15):(3\5-1\3-1\4).

Answer 1

(1\6+1\10+1\15):(3\5-1\3-1\4)= (5/30+3/30+2/30):(36/60-20/60-15/60)=10/30:1/60=1/3*60/1=20

Answer 2

1) 1\6+1\10+1\15 = (5+3+2)/30 = 10/30=1/3
2) 3\5-1\3-1\4 = (9-5)/15 -1/4 = 4/15 -1/4 = (16-15)/60=1/60
3) 1/3:1/60=1/3*60/1 = 20