數學的問題(分數)

2007-07-24 9:12 am

2.95=______% (分數) 72%=

20?13=_____% 40.5% =

0.078=_______% 23/3/2%=

4/7/2=________% 14/7/2=

回答 (2)

2007-07-24 9:31 am

✔ 最佳答案

2.95=_295__%
72% = 72/100 = 18/25
20/13 ≈ 1.538461538... ≈ 1.54%
40.5% = 405/1000 = 81/200
0.078 = 7.8%
23/3/2% ≈ 237/1000
4/7/2 ≈429%
14/7/2 ≈ 1429%

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2007-07-26 5:23 am

2.95=295% 72% =0.72
20.13=2013% 40.5% =0.405
0.078=7.8% 23/3/2=3.835%
4/7/2=29% 14/7/2=100%

參考: my

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