三道六年级上求连比
问题描述：
三道六年级上求连比
(1)x:y=0.5:1/5 z:y=2/3:1/2 求x:y:z
(2)a:b=1/2:1/3 a:c=1/4:1/3 求a:b:c
(3)x:y=0.6:0.7 z:y=0.04:0.3求x:y:z
答
（1）题：x:y=0.5:1/5=0.5:0.2=5:2=15:6y:z=1/2:2/3=3:4=6:8x:y:z=15:6:8(2)题：a:b=0.6:0.7=6:7a:c=1/4:1/3=3:4=6:8a:b:c=6:7:8(3)题：x:y=0.6:0.7=6:7=90:105y:z=0.3:0.04=30:4=15:2=105:14x:y:z=90:105:14...