標題:
L.C.M唔識做
發問:
短除法 L.C.M 1.5,9,15 2.6,12,15
最佳解答:
L.C.M 1.5,9,15 5 | 5 , 9 , 15 3 | 1 , 9 , 3 1 | 1 , 3 , 1 L.C.M. = 5*3*1*1*3*1 = 45 2.6,12,15 3 | 6 , 12 , 15 2 | 2 , 4 , 5 1 | 1 , 2 , 5 L.C.M. = 3*2*1*1*2*5 = 60
其他解答:
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圖片參考:http://a367.yahoofs.com/hkblog/lLCaxdafERnPe3jYGx76KtU-_2/blog/20110915110222788.jpg?ib_____DW9pjHkD6 L.C.M.= 5 x 3 x 1 x 3 x 1 = 45 證明: 45 ÷ 5 = 9 45 ÷ 9 = 5 45 ÷ 15 = 3 圖片參考:http://a367.yahoofs.com/hkblog/lLCaxdafERnPe3jYGx76KtU-_2/blog/20110915110213567.jpg?ib_____Du8dt7XQ8 L.C.M. = 3 x 2 x 1 x 2 x 5 = 60 證明: 60 ÷ 6 = 10 60 ÷ 12 = 5 60 ÷ 15 = 4
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