-0,03•(-5/9):(1,53:1,5-1,2)-1
-0.03*(-5/9)=-3/100*(-5/9)=1/60
1.53:1.5=1.02
1.02-1.2=-0.18
1/60:(-0.18)=1/60*(-50/9)=-5/54
-5/54-1=-1 5/54
-2+(1,47:1,4-1,5)•(-5/9):(0,13)
1.47:1.4=1.05
1.05-1.5=-0.45
-0.45*(-5/9)=-9/20*(-5/9)=1/4
1/4:0.13=1/4*100/13=100/52=1 12/13
-2+1 12/13=-1/13