SOLUTION: How would u solve 3/10-8/a

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: How would u solve 3/10-8/a       Log On


   

Question 920738: How would u solve 3/10-8/a
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The LCD is 10a. The goal is to get the denominators equal to the LCD. Then we can combine the fractions.

3%2F10-8%2Fa

%283a%29%2F%2810a%29-8%2Fa

%283a%29%2F%2810a%29-%2810%2A8%29%2F%2810%2Aa%29

%283a%29%2F%2810a%29-%2880%29%2F%2810a%29

%283a-80%29%2F%2810a%29

-------------------------------------------------------
The expression 3%2F10-8%2Fa simplifies to %283a-80%29%2F%2810a%29
-------------------------------------------------------

Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim