一、口算.写答案的话打横.3/4×6/15= 2/3×6= 12÷6/7= 7/10×5/7= 1÷12/13= 8/33÷5/22= 3/25÷6= 1/4+1/5= 二、解方程.3/5×+3/4=4.77 三、(1)a/b=3/2,a/c=6/5,求b/c=?(2)已知a:b=9:7,b:c=5:3,求a:b:c.四、《1》水果店运进一批水
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![一、口算.写答案的话打横.3/4×6/15= 2/3×6= 12÷6/7= 7/10×5/7= 1÷12/13= 8/33÷5/22= 3/25÷6= 1/4+1/5= 二、解方程.3/5×+3/4=4.77 三、(1)a/b=3/2,a/c=6/5,求b/c=?(2)已知a:b=9:7,b:c=5:3,求a:b:c.四、《1》水果店运进一批水](/uploads/image/z/242820-36-0.jpg?t=%E4%B8%80%E3%80%81%E5%8F%A3%E7%AE%97.%E5%86%99%E7%AD%94%E6%A1%88%E7%9A%84%E8%AF%9D%E6%89%93%E6%A8%AA.3%2F4%C3%976%2F15%3D+2%2F3%C3%976%3D+12%C3%B76%2F7%3D+7%2F10%C3%975%2F7%3D+1%C3%B712%2F13%3D+8%2F33%C3%B75%2F22%3D+3%2F25%C3%B76%3D+1%2F4%2B1%2F5%3D+%E4%BA%8C%E3%80%81%E8%A7%A3%E6%96%B9%E7%A8%8B.3%2F5%C3%97%2B3%2F4%3D4.77+%E4%B8%89%E3%80%81%281%29a%2Fb%3D3%2F2%2Ca%2Fc%3D6%2F5%2C%E6%B1%82b%2Fc%3D%3F%282%29%E5%B7%B2%E7%9F%A5a%3Ab%3D9%3A7%2Cb%3Ac%3D5%3A3%2C%E6%B1%82a%3Ab%3Ac.%E5%9B%9B%E3%80%81%E3%80%8A1%E3%80%8B%E6%B0%B4%E6%9E%9C%E5%BA%97%E8%BF%90%E8%BF%9B%E4%B8%80%E6%89%B9%E6%B0%B4)
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