數學小問題

2008-01-16 7:27 am

6分之9既3次方
答案係唔係8分之27?
點計出黎?

回答 (5)

2008-01-16 7:33 am

✔ 最佳答案

(9/6)^3
=(9^3) /(6^3)
= 729 / 216
= 27/8
or
(9/6)^3
= (3/2)^3
= (3^3)/(2^3)
= 27/8

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2008-01-17 6:01 am

＝６分之９乘以６分之９乘以６分之９

＝２１６分之７２９

＝２分之３乘以２分之３乘以２分之３

＝８分之２７

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2008-01-16 9:58 pm

首先要說明：9 over 6 等於1.5

step 2: 1.5^3=3.375

step 3: 再化為 3又375 over 1000

step 4: 再簡3又3 over 8

step 5: 轉為假分數27 over 8，即答案！

參考: 個人經驗

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2008-01-16 4:42 pm

(9/6)^3
= (3/2)^3
= (3^3)/(2^3)
= 27/8

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2008-01-16 8:05 am

而家問緊9/6 ge cube
唔係應該唔化簡嫁咩?!
(9/6)^3
=729/216

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