document.write( "Question 569661: $\"%287%2F20%29%2B%283%2F16%29=x\"$ ?what is x? \n" ); document.write( "

Algebra.Com's Answer #367413 by JBarnum(2146) $\"\"$ $\"About$

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$\"%287%2F20%29%2B%283%2F16%29=x\"$
\n" ); document.write( "find common denom fastest is to just multiply the two denoms
\n" ); document.write( "20*16=320
\n" ); document.write( "16*7=112
\n" ); document.write( "20*3=60
\n" ); document.write( " $\"%28112%2F320%29%2B%2860%2F320%29=x\"$ add
\n" ); document.write( " $\"172%2F320=x\"$ reduce by 4 172/4=43 320/4=80
\n" ); document.write( " $\"43%2F80=x\"$ \n" ); document.write( "

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