化简比 0.5:5分之2和0.375:4分之1

问题描述:

化简比 0.5:5分之2和0.375:4分之1
比如3:11分之6=(3乘11):(11分之6乘11)
=33:6
=(33除以3):(6除以3)
=11:2

0.5:2/5=0.5*5:2/5 *5
=2.5:2
=2.5*2:2*2
=5:4
0.375:1/4=3/8:1/4
=3/8 *8 :1/4 *8
=3:2