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The Brainliest Answer!
2014-11-04T22:37:29+08:00
1/4:=1/2:2/3...........................

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2014-11-05T01:31:41+08:00
1/4::1/3  =1/2::n= 1/4/1/3 =1/2/n==1/4 x3/1===1/2/n/1=3/4=1/2n ie n=2/3
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