x/6=5/12,1/3:1/4=1/6:x,x:0.9=2.7:1.8
问题描述:
x/6=5/12,1/3:1/4=1/6:x,x:0.9=2.7:1.8
解比例
答
x/6=5/12,
x=30/12=5/2=2.5
1/3:1/4=1/6:x,
x=1/24 *3=1/8
x:0.9=2.7:1.8
x=0.9*2.7/1.8=1.35