6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)
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![6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)](/uploads/image/z/212053-13-3.jpg?t=6.5%3Ax%3D0.5%3A4+x%3A0.42%3D7%3A21+1%2F8%3A1%2F6%3D1%2F10%3Ax+6%2F2.5%3Dx%2F3+3%2F2%3A1%2F3%3Dx%3A8+x%3A9%2F2%3D1%2F3%3A2+%28%E8%A7%A3%E6%AF%94%E4%BE%8B%EF%BC%896.5%3Ax%3D0.5%3A4+x%3A0.42%3D7%3A21+1%2F8%3A1%2F6%3D1%2F10%3Ax+6%2F2.5%3Dx%2F3+3%2F2%3A1%2F3%3Dx%3A8+x%3A9%2F2%3D1%2F3%3A2+%28%E8%A7%A3%E6%AF%94%E4%BE%8B%EF%BC%89)
6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)
6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)
6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)
6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)6.5:x=0.5:4 x:0.42=7:21 1/8:1/6=1/10:x 6/2.5=x/3 3/2:1/3=x:8 x:9/2=1/3:2 (解比例)
6.5:x=0.5:4
x=4*6.5/0.5=52
x:0.42=7:21
x=7*0.42/21=0.14
1/8:1/6=1/10:x
x=(1/6)*(1/10)/(1/8)=2/15
6/2.5=x/3
x=6*3/2.5=7.2
3/2:1/3=x:8
x=(3/2)*8/(1/3)=36
x:9/2=1/3:2
x=(1/3)*(9/2)/2=3/4