4.2:5.6=14:x4.2x=5.6×14x=5.6×14÷4.2x=56/3x=18又3分之2
4.2:5.6=14:X4.2X=5.6*14X=18又2/3
4.2:5.6=14:xx=5.6x14÷4.2x=28/15
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