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先找8和10的最小公倍數應該是40 8分之5上下同時乘以5為40分之25 10分之3上下同時乘以4為40分之12
分母為8.2分之一變成“8分之4”,4分之3變成“8分之6”,8分之5不變,就ok啦
不一樣…
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