已知a:b=1/2:2/5,b:c=1.2:0.5求a:b:c
问题描述:
已知a:b=1/2:2/5,b:c=1.2:0.5求a:b:c
答
a:b=1/2:2/5=5:4=15:12
b:c=1.2:0.5=12:5
a:b:c=15:12:5