Question

[1,6-0,6(1/8:0,25)-0,(3)+1/30]ori 1,1(6)

Answer 1

1,6=16/10(simplificat cu 2)=8/5
0,6=6/10(simplificat cu 2)=3/5
0,25=25/100(simplificat cu 25)=1/4
0,(3)=3/9(simplificat cu 3)=1/9
1,1(6)=116-11/90=105/90(simplificat cu 5)=21/18(simplificat cu 3)=7/6
[8/5-3/5(1/8:1/4)-1/9+1/30]x7/6=
[8/5-3/5(1/8x4/1)-1/9+1/30]x7/6=
(8/5-3/5x1/2-1/9+1/30)x7/6=
(8/5-3/10-1/9+1/30)x7/6=
(13/10-1/9+1/30)x7/6=
(107/90+1/30)x7/6=
110/90x7/6=
77/54