rate ang ratio

2011-01-20 1:03 am

if 1/a:1/b:1/c=2:3:7
how to know a:b:c=???

回答 (3)

2011-01-20 1:08 am

✔ 最佳答案

1/a:1/b:1/c=2:3:7

令 1/a = 2k, 1/b = 3k, 1/c = 7k

則 a =1/(2k), b = 1/(3k), c = 1/(7k)

a:b:c = 1/2 : 1/3 : 1/7

a:b:c = 21 : 14 : 6

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2011-01-20 1:10 am

what information i should provide?

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2011-01-20 1:07 am

The information isnt enough..................

2011-01-19 18:53:07 補充：
Sorry ,I am wrong...............

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