數學方程問題~please~

1又3分2 n -2 = 2又6分1
->> (5/3 n) -2 =13/6
先將分母消除 2邊x 6
-> 10n-12=13
10n=25
n=2.5

一又三分二n=5n/3
二又六分一 =13/6
(5n/3)-2=13/6
2(5n)-2(6)=13
10n-12=13
10n=25
n=25/10
n=5/2

解:5/3n-2=13/6
5/3n=13/6+2
n=25/6x3/5(在這裡相約)
n=1/2

5/3n-2=13/6
5/3n=13+12/6
5/3n=25/6
n=(25/6)(3/5)
n=5/2
n=2.5

樓一錯了！

(5/3)n-2=13/6
(5/3)n=25/6
n= 25/6 * 3/5
n=25/10
n=2.5//

等於(5/3)n - 2 = 13/6
(5/3)n = (13/6) - 2
(5/3)n = (13-12)/6
n = (1/6) (3/5)
n = 1/10