小六假期作業

2007-12-28 2:17 am
豬扒一袋,每20塊,30塊或50塊均可分盡。這袋豬扒最少有____塊。(用質因數分解法計算) 20=________ 30=______ 50=______
20,30,50的LCM
=_____________
=_____________

回答 (3)

2007-12-28 2:21 am
✔ 最佳答案
豬扒一袋,每20塊,30塊或50塊均可分盡。這袋豬扒最少有____塊。(用質因數分解法計算) 20=2x2x5 30=2x3x5 50=2x5x5
20,30,50的LCM
=2x2x3x5x5
=300
2007-12-28 2:34 am
20=2x2x5
30=2x3x5
50=2x5x5


20,30,50的LCM
=2x5x2x3x5
=300
2007-12-28 2:29 am
20=2x2x5
30=2x3x5
50=2x5x5
20,30,50的LCM
=2x2x3x5x5
=300
我中4啦!so easy~~~
參考: me!Rebecca


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