(0.8:一又九分之七:4.5:10)怎么化?

问题描述:

(0.8:一又九分之七:4.5:10)怎么化?
要化成最简整数比

0.8:一又九分之七:4.5:10=0.8*9:16:4.5*9:10*9=7.2:16:40.5:90
=72:160:405:900