my teacher failed at explaining this: 3 over 8x^3; y^3 over 9x^7. Find the LCD for the rational expressions and then convert each expression to an equivalent expression with the denominator equal to the LCD; do not reduce fractions.

Question

anonymous · Answer

the LCD is $$72x^{}$$

anonymous · Answer

its seventy-seven X raised to 7

anonymous · Answer

the form will be
27x raised to 4 over 72xraised to 7 ,
and 8yraised to 3 over 72x raised to 7

anonymous · Answer

I have no idea how you figured that out, but I appreciate your input and I hope it helps me figure out the next few problems! :)

anonymous · Answer

okay..
do you have skype account?
i can explain it verbally..

anonymous · Answer

It's the last section of the semester that we are not testing on, but the professor is still requiring completion of this section.

anonymous · Answer

really?

anonymous · Answer

yes. It's subject matter that won't be focused on until next semester, which I think is rather silly. I do have skype, let me check to see if it is installed on my computer though:)

anonymous · Answer

okay..i can help. i'm a teacher.

anonymous · Answer

thank you.