Maths Question

3k/2 + 1/3 = 2/1

3k/2 = 2 - 1/3
3k/2 = 6/3-1/3
3k/2 = 5/3
[ 同交义相乘method!]
3x3k= 2x5
9k=10
k=10/9

2008-04-14 18:46:37 補充：
*用*交义相乘method

即係將左邊既分母調去右邊既分子,右邊既分母調去左邊既分子

3k/2 = 5/3

3x3k= 2x5

2008-04-14 21:01:48 補充：
3k/2 + 1/3 = 1/2

3k/2=1/2-1/3
3k/2=(3-2)/6
3k/2=1/6
3k x 6=1 x 2
18k=2
k=2/18
k=1/9


哈其實我都覺得有d奇怪...好彩你最後都話我知岩既問題 =)
希望幫到你呀!!

3k/2 + 1/3 = 1/2
9k + 2 = 3
9k = 1
k = 1 / 9

3k/2 + 1/3 = 2/1

3k/2 = 2/1 - 1/3
= 2 - 1/3
= 5/3
3k = 5/3 * 2
k = 5/3 * 2/3
= 10/9