用500粒大豆作发芽试验，结果有22粒没有发芽．求这批种子的发芽率．
把假分数化成带分数或整数．，，．
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==
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= 6=
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= 3
= 2
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