document.write( "Question 99629: Dear Tutor,
\n" ); document.write( "I'm trying to simplify expressions using prime factors. I don't understand what that means, much less how to solve any problems. Here's an example of one of the questions:\r
\n" ); document.write( "\n" ); document.write( "7/30 - 29/75\r
\n" ); document.write( "\n" ); document.write( "(those are fractions)\r
\n" ); document.write( "\n" ); document.write( "If you can, please help. My math teacher doesn't explain things thoroughly. :/
\n" ); document.write( "Thank you so much! This is really appreciated!
\n" ); document.write( "

Algebra.Com's Answer #72509 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
7/30 - 29/75
\n" ); document.write( "The least common denominator of 30 and 75 is 150
\n" ); document.write( "Rewrite each fraction with 150 as the denominator of each fraction:
\n" ); document.write( "= 7*5/150 - 29*2/150
\n" ); document.write( "Since the two denominators are now the same subtract to get:
\n" ); document.write( "= (35-58)/150
\n" ); document.write( "= -3/150
\n" ); document.write( "= -1/50
\n" ); document.write( "===============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
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