用短除法求下列各組數H.C.F.

2009-12-20 7:38 pm
1) 20, 28

2) 32, 56

回答 (3)

2009-12-20 7:51 pm
✔ 最佳答案
As follows:

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2009-12-20 7:55 pm
1)

2 | 20 28
2 | 10 14
5 7

H.C.F = 2 x 2 = 4 (張左邊數字相乘)


2)

2 | 32 56
2 | 16 28
2 | 8 14
4 7

H.C.F = 2 x 2 x 2 = 8
2009-12-20 7:52 pm
2l20,28
 ---
2l10,14
---
5, 7

HCF 2X2 = 4


2l32,56
 ---
2l16,28
---
2l 8,14
---
4, 7


HCF 2X2X2=8


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