求比值(要过程):15:1/15=()0.2kg:120g=()化简:4/5:5/6=( ) 117:78:51=( )已知:x:y=2:3,y:z=6:5,则x:y=()一幅地图,图上20厘米表示实际距离10千米,这幅地图的比例尺是:某人看书,看了全
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![求比值(要过程):15:1/15=()0.2kg:120g=()化简:4/5:5/6=( ) 117:78:51=( )已知:x:y=2:3,y:z=6:5,则x:y=()一幅地图,图上20厘米表示实际距离10千米,这幅地图的比例尺是:某人看书,看了全](/uploads/image/z/15049396-28-6.jpg?t=%E6%B1%82%E6%AF%94%E5%80%BC%EF%BC%88%E8%A6%81%E8%BF%87%E7%A8%8B%EF%BC%89%EF%BC%9A15%EF%BC%9A1%2F15%3D%EF%BC%88%EF%BC%890.2kg%EF%BC%9A120g%3D%EF%BC%88%EF%BC%89%E5%8C%96%E7%AE%80%EF%BC%9A4%2F5%3A5%2F6%3D%28+%29+117%3A78%3A51%3D%28+%29%E5%B7%B2%E7%9F%A5%EF%BC%9Ax%EF%BC%9Ay%3D2%EF%BC%9A3%2Cy%EF%BC%9Az%3D6%EF%BC%9A5%2C%E5%88%99x%EF%BC%9Ay%3D%EF%BC%88%EF%BC%89%E4%B8%80%E5%B9%85%E5%9C%B0%E5%9B%BE%2C%E5%9B%BE%E4%B8%8A20%E5%8E%98%E7%B1%B3%E8%A1%A8%E7%A4%BA%E5%AE%9E%E9%99%85%E8%B7%9D%E7%A6%BB10%E5%8D%83%E7%B1%B3%2C%E8%BF%99%E5%B9%85%E5%9C%B0%E5%9B%BE%E7%9A%84%E6%AF%94%E4%BE%8B%E5%B0%BA%E6%98%AF%EF%BC%9A%E6%9F%90%E4%BA%BA%E7%9C%8B%E4%B9%A6%2C%E7%9C%8B%E4%BA%86%E5%85%A8)
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