F.2 Maths

2008-01-03 1:48 am

2b/3a=2/9

Find a:b

I will add more

更新1:

I need method

回答 (6)

2008-01-03 2:10 am

✔ 最佳答案

2b/3a = 2/9
3a/2b = 9/2
a/b = 3/1
a:b=3:1

👍 0 👎 0

2008-01-04 5:33 am

2b/3a=2/9
b/a=2/3=2/9
b:a=2:3=2:9
2b:3a=2:9
b:2/2 a:9/3
b:a=1:3
a:b=3:1

👍 0 👎 0

2008-01-04 2:13 am

ans:
2b/3a=2/9
2b:3a=2:9
b:a=2/2:9/3
b:a=1:3

👍 0 👎 0

2008-01-03 4:02 am

2b/3a=2/9
2b:3a=2:9
b:a=2/2:9/3
b:a=1:3

2008-01-02 20:03:03 補充：
so a:b=3:1

參考: me

👍 0 👎 0

2008-01-03 2:12 am

2b/3a=2/9

2b=2 3a=9

2b/2=2/2 3a/3=9/3

b=1 a=3

👍 0 👎 0

2008-01-03 2:06 am

a:b=3:1

參考: me

👍 0 👎 0