[-1/4-5/6-7/12+5/9]/(-1/36)
=[-1/4-5/6-7/12+5/9]*(-36)
=[1/4+5/6+7/12-5/9]*36
=9+5*6+7*3-5*4
=9+30+21-20
=39+1
=40
这应该算是简便吧,是拆分法还是啥的吧
[-1/4-5/6-7/12+5/9]/(-1/36)
=[-1/4-5/6-7/12+5/9]*(-36)
=[1/4+5/6+7/12-5/9]*36
=9+5*6+7*3-5*4
=9+30+21-20
=39+1
=40
这应该算是简便吧,是拆分法还是啥的吧