六年级下册解比例练习题解比例x:10=:0.4:x=1.2:2=1:=:x0.8:4=x:8:x=3:1221.25:0.25=x:1.6=3x:=6:=45:x=18:262.8:4.2=2.8:4.2=x:9.6 x110.61.56x5312 x0 6 4 2.4431x411425 x4512 2536x:10= 1 : 10.4:x=1.2:2431 : 1= 1:x0.8:4=x:82541.25:0.25=x:1.62 = 89 xx:2 =6:244.5 =6325x2.22.8:4.2=x:9.61 :x= 1: 11084x:24=3 : 18:x=4 : 34354x110642.4 x 6533141142542x512536x1050 x401.3 x5.2 2011164.68320 9 x0.2 x12 = 32.4x3 :x=3:12436 = 54x345:x=18:262.8:4.2=x:9.65 : 1 =x: 186120.61.512 x11x140.7 2x3.6 1863x86410：X=150:20x:0.15=3.6:0.953.5/x=8/91/10:x=1/5:1/41/2:1/5=1/4:x1/3:1/4=1/5:xX:0.5=40:0.254.5/1.5=x/36
