[(3/25-1,5)x1,(6)+(0,1(6)+14/10)]:0,(074)=
0,1(6)=(16-1)/90=15/90=1/6
1,(6)=(16-1)/9=15/9=5/3
0,(074)=74/999=2/27
=[(3/25-15/10)x5/3+(1/6+7/5)]:2/27=
=[(3/25-3/2)x5/3+(1/6+7/5)]:2/27=
=(1/5-5/2+1/6+7/5):2/27=
(=6-75+5+42)/30 × 27/2=
=-22/30 × 27/2=-99/10
