ab:bc:ac=10:12:15
问题描述:
ab:bc:ac=10:12:15
答
求a:b:c=?是吧.
ab:bc=a:c=10:12=5:6
ab:ac=b:c=10:15=2:3
bc:ac=b:a=12:15=4:5
a=5/4b=5/6c
a:b:c=5:4:6