简算 1.(3.6*0.75*1.2)/(1.5*24*0.18)
问题描述:
简算 1.(3.6*0.75*1.2)/(1.5*24*0.18)
请求高手指点!
答
(3.6*0.75*1.2)/(1.5*24*0.18)
=(0.9*4*0.25*3*3*0.4)/(3*0.25*2*0.2*0.9)上下约去,0.9 3 0.25
=(4*3*0.4)/(2*0.2)
=12