(a:b=5:4 , b:c=6:5 ,求a:b:c)唔識計,請各位幫幫忙

👨🏻‍🏫 學術台數學

[匿名]

2007-09-02 10:58 pm

若a:b=5:4 和 b:c=6:5 ,求a:b:c

b:c=6:5
a:b = 5:4
--------------------------
a:b:c =????

請大家幫我計計啦!!!!!
以直式計算
唔該哂!!!

回答 (2)

[匿名]

2007-09-02 11:05 pm

✔ 最佳答案

a:b = 5:4 ......... (1)
b:c = 6:5 ..........(2)

(1) x 3
(2) x 2

a:b = 15:12
b:c= 12:10
-------------------------------
a:b:c=15:12:10

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用戶195274

2007-09-02 11:01 pm

a:b =5:4
b:c= 6:5
---------------------'
a:b:c = 30:24:20 = 15:12:10

參考: me

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