document.write( "Question 343865: Well. I need help with distributive property and ratonal numbers. we were given problems at school and I dont understand how to do those problems. Example:
\n" ); document.write( "0.5(12x+80)And we cannot use a calculator on the test. so please help asap!! and i also need help on finding the sum or difference of fractions Example:
\n" ); document.write( "1/3 - 2/9 I just need you to please help me go through the problem step by step. & then give me the answer. thank you!! email me! secretrockstar35@aol.com
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Algebra.Com's Answer #245984 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Bring the multiplier inside the parentheses and multiply everything inside by it.
\n" ); document.write( "\"0.5%2812x%2B80%29=%280.5%2812x%29%2B0.5%2880%29%29=%286x%2B40%29\"
\n" ); document.write( "It's that simple.
\n" ); document.write( "\"2%28x%2By%2Bz%2B13%29=%282x%2B2y%2B2z%2B26%29\"
\n" ); document.write( "OK?
\n" ); document.write( ".
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\n" ); document.write( "Fractions, to add or subtract you need a common denominator.
\n" ); document.write( "Quickest way is to multiply the two denominators you have together.
\n" ); document.write( "\"1%2F3-2%2F9\"
\n" ); document.write( "You can use a common denominator or \"3%2A9=27\"
\n" ); document.write( "\"%281%2F3%29%289%2F9%29=9%2F27\"
\n" ); document.write( "\"%282%2F9%29%283%2F3%29=6%2F27\"
\n" ); document.write( "So then
\n" ); document.write( "\"1%2F3-2%2F9=9%2F27-6%2F27\"
\n" ); document.write( "\"1%2F3-2%2F9=%289-6%29%2F27\"
\n" ); document.write( "\"1%2F3-2%2F9=3%2F27\"
\n" ); document.write( "\"1%2F3-2%2F9=1%2F9\"
\n" ); document.write( "If you don't use the lowest common denominator (LCD), you will have to simplify your final answer. In your case \"9\" was the LCD.
\n" ); document.write( "Another example,
\n" ); document.write( "\"3%2F8%2B1%2F5=%283%2F8%29%285%2F5%29%2B%281%2F5%29%288%2F8%29\"
\n" ); document.write( "\"3%2F8%2B1%2F5=15%2F40%2B8%2F40\"
\n" ); document.write( "\"3%2F8%2B1%2F5=23%2F40\"
\n" ); document.write( "In that case, 40 was the LCD.
\n" ); document.write( "OK?
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