document.write( "Question 72507: Which of the following is not a fractional representation for 2/7 ?\r
\n" ); document.write( "\n" ); document.write( "A)4/14
\n" ); document.write( "B)4/21
\n" ); document.write( "C)6/21
\n" ); document.write( "D)8/28 \n" ); document.write( "

Algebra.Com's Answer #51817 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
Check for each:
\n" ); document.write( "A) $\"4%2F14=%282%2A2%29%2F%287%2A2%29=%282%2Across%282%29%29%2F%287%2Across%282%29%29=2%2F7\"$ Factor both numerator and denominator, you'll see that they're equivalent.
\n" ); document.write( "B) $\"4%2F21=%282%2A2%29%2F%287%2A3%29=%282%2A2%29%2F%287%2A3%29=4%2F21\"$ You can see that no terms cancel, so its not equivalent to 2/7.
\n" ); document.write( "C) $\"6%2F21=%282%2A3%29%2F%287%2A3%29=%282%2Across%283%29%29%2F%287%2Across%283%29%29=2%2F7\"$ The 3's cancel making them equal
\n" ); document.write( "D) $\"8%2F28=%282%2A4%29%2F%287%2A4%29=%282%2Across%284%29%29%2F%287%2Across%284%29%29=2%2F7\"$ This one is equivalent as well
\n" ); document.write( "So the only one that's not equivalent is B) \n" ); document.write( "

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