Question

1) (-2,3)-(-8 7/9)-(12,05)-(-2 1/100)=
2) (8 1/5-15 9/25)-7+(-9 1/4)=

Answer 1

1)   .....= -2,3+8 7/9 -12,05 +2,01= -12,34+8 7/9= - 12 17/50+8 7/9= - 12 153/450+8 350/450= - 3 253/450

2)   ........=8 5/25 - 15 9/25 - 7 - 9 1/4= - 7 4/25 - 7 - 9 1/4= - 14 4/25 - 9 1/4= - 14 16/100 - 9 25/100= - 14,16 - 9,25= - 23,41