1.6-(-3.3-(-2.1+(1.2/3-2.1/6)))=2.3 1)1.2/3-2.1/6=1.4/6-2.1/6=-3/6=-0.5 2) -2.1+(-0.5)=-2.6 3)-3.3-(-2.6)=-0.7
4)1.6-(-0.7)=2.3
(1.1/3-5.5+2.5/6)-(-1.1/8+11/12)=--1.1/8
1) 1.1/3-5.5/10+2.5/6=1.10/30-5.15/30+2.25/30=-1.10/30=-1.1/3
2)-1.1/8+11/12=-27/24+22/24=-5/24
3)-1.1/3-(-5/24)=-32/24+5/24=-27/24=-1.1/8