(8-6 1/4):(-5/8)-9*(-1/2-2/5
8-6 1/4=1 3/4=7/4 7/4:(-5/8)=7*8/4*5=-14/5 -1/2-2/5=-5-4/10=-9/10 -9:9/10=-81/10 -14/5+81/10=-28+81/10=53/10=5,3