求0.6+五分之三×八分之五-八分之三×60%的简算过称

问题描述:

求0.6+五分之三×八分之五-八分之三×60%的简算过称

0.6+3/5*5/8-3/8*60%
=0.6+0.6*5/8-3/8*0.6
=0.6*(1+5/8-3/8)
=0.6*(1+1/4)
=3/5*5/4
=3/4