-0,084:12/25=-9 1/3:(-1 5/51)=-(7 1/6-2 85/100)=-7 31/36 +(-12,73)=

Question

-0,084:12/25=
-9 1/3:(-1 5/51)=
-(7 1/6-2 85/100)=
-7 31/36 +(-12,73)=

Answer 1

1) -0,084:12/25=-0,084:0,48=-0,175
2) -9 1/3:(-1 5/51)=-28/3:(-56/5)=5/6
3) -(7 1/6-2 85/100)=-7 1/6+2 85/100=-7 50/300+2 255/300=-6 350/300+2 255/300=-4 95/300=-4 19/60
4) -7 31/36+(-12,73)=-7 31/36-12 73/100=-7 3100/3600-12 2628/3600=-19 5728/3600=-20 2128/3600=-20 133/225