(-24)*(1/2+1/3-1/4-7/12)/(-1又5分之1)

问题描述:

(-24)*(1/2+1/3-1/4-7/12)/(-1又5分之1)

(-24)*(1/2+1/3-1/4-7/12)/(-1又5分之1) =(-24)*(1/2+1/3-1/4-7/12)x(-5/6)
=20x(1/2+1/3-1/4-7/12)
=10+20/3-5-35/3
=5-5
=0