(-24)*(1/2+1/3-1/4-7/12)/(-1又5分之1)

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(-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)/(-1又5分之

(-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)/(-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

(-24)*(1/2+1/3-1/4-7/12)/(-1又5分之1)
=(-24)*(-5/6)*(1/2+1/3-1/4-7/12)
=20*(1/2+1/3-1/4-7/12)
=20*1/2+20*1/3-20*1/4-20*7/12
=10+20/3-5-35/3
=5-15/3
=5-5
=0