數學唔識幫幫忙!

要將分數化成百分數係要將分數乘100%(n分之m x 100%)
1.) 2又4分之3 x 100%
=4分之11 x 100% (將4同100約~4=1 100=25)
=11 x 25
=275%

2.) 200分之57 x 100% (將200同100約~200=2 100=1)
=2分之57
=28.5%

3.) 16分之5 x 100% (將16同100約~16=4 100=25)
=4分之125
=31.25%

4.) 24個3角型~10個有色~有色既就係
(分數:24分之10
=12分之5)
(百分數:24分之10 x 100% [24同100約~24=6 100=25]
{6再同10約~ 6= 3 10=5}
=3分之125
=41又3分之2%)

do you understand why is this changeable like this? u must be able to do it , not to just ask for answers

1:275%
2:28.5%
3:19.53125%
4:41.7%

1) 275% 2有75/100

2) 48.5% 48.5/100

3) 31.25% 31.5/100

4) 10/24 → 41.66% (無可能會有整數喎)

2008-11-18 16:36:16 補充：
第二題更正


2) 28.5% 28.5/100

275%,28.5%,19.53125%,41.7%:p