3,7-(4-5,3)
-13-(20-32)
-5/8-(5/8-1)
-0,25-(3-2,25)

3,7-(4-5,3)=3,7-4+5,3=513-(20-32)=13-20+32=25-5/8-(5/8-1)=-5/8-5/8+1=-1/4=-0,25-0,25-(3-2,25)=-0,25-3+2,25=-1