2.89×6.37+0.137×28.9+289×0.0226．
将假分数化成带分数或整数，把带分数化成假分数．======= 6=
把下列的假分数化成带分数或整数． ===
把下列假分数化成带分数，把带分数化成假分数． = 3= 2==
把假分数化成带分数或整数．，，．
假分数与带分数互化====
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= 6=
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= 3
= 2
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