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标题: 请教GWD5-15 [打印本页]

作者: applebees 时间: 2005-9-26 06:10 标题: 请教GWD5-15

Q15:

Which of the following fractions has a decimal equivalent that is a terminating decimal?

a 10/189

b 15/196

c 16/225

d 25/144

e 39/128

不明白题目啥意思的说……

作者: dhhgh11 时间: 2005-9-26 12:58

terminating decimal is 有限小数。please prepare a dictionary beside

you.

this Q asks about which option is divisible.

2 or the multiples of 2 can.

thus n/2 or 2/4 or n/128

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