Create three fractions by replacing the word ‘blank’ in each fraction with a variable or number. You can use the same value or three different replacement values. Explain all the work in simplifying your new addition problem.
$${3\over\text{blank}}+{{\text{blank}}\over a^2}-{{\text{blank}}\over a^3}$$

Question

Create three fractions by replacing the word ‘blank’ in each fraction with a variable or number. You can use the same value or three different replacement values. Explain all the work in simplifying your new addition problem. 
$${3\over\text{blank}}+{{\text{blank}}\over a^2}-{{\text{blank}}\over a^3}$$

anonymous · Answer

My advise is to use 1 and 0 to fill in the blanks.  That will make it easy to simplify.

Anyway, if you need help, you should be more specific about what you are finding difficult.

anonymous · Answer

i dont get what it wants me to do :\

anonymous · Answer

"Create three fractions by replacing the word ‘blank’ in each fraction with a variable or number."

Mean replace 'blank' with some number or variable... not sure how to better explain...

anonymous · Answer

like this?
|dw:1356420791988:dw|