求比值7.5:1/2,化简比1.25:5/8,250克:2/5千克,解比例x:24/7=0.875:
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![求比值7.5:1/2,化简比1.25:5/8,250克:2/5千克,解比例x:24/7=0.875:](/uploads/image/z/1746816-24-6.jpg?t=%E6%B1%82%E6%AF%94%E5%80%BC7.5%3A1%2F2%2C%E5%8C%96%E7%AE%80%E6%AF%941.25%3A5%2F8%2C250%E5%85%8B%EF%BC%9A2%2F5%E5%8D%83%E5%85%8B%2C%E8%A7%A3%E6%AF%94%E4%BE%8Bx%3A24%2F7%3D0.875%3A)
求比值7.5:1/2,化简比1.25:5/8,250克:2/5千克,解比例x:24/7=0.875:
求比值7.5:1/2,化简比1.25:5/8,250克:2/5千克,解比例x:24/7=0.875:
求比值7.5:1/2,化简比1.25:5/8,250克:2/5千克,解比例x:24/7=0.875:
比值7.5:1/2=7.5×2=15
化简比1.25:5/8=5/4:5/8=2:1
250克:2/5千克=250:400=5:8
解比例x:24/7=0.875:5
5x=24/7×7/8
5x=3
x=3/5
7.5:1/2 1.25::5/8 250克:2/5千克 x:24/7=0.875:5
=7.5除以1/2 =5/4:5/8 =250:400 5x=24/7*7/8
=...
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7.5:1/2 1.25::5/8 250克:2/5千克 x:24/7=0.875:5
=7.5除以1/2 =5/4:5/8 =250:400 5x=24/7*7/8
=7.5*2 =10:5 =5:8 5x=3
=15 =2:1 x=3除以5
x=3/5
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