【48*(1/3-1/2+1/4)怎么算的?】
48*(1/3-1/2+1/4)怎么算的?
用乘法分配率:
48*(1/3-1/2+1/4)
=16-24+12
=4
或直接算
=48*(-1/6+1/4)
=48*1/12