Question

What is the lowest common denominator of the following rational expressions?
10/13x^7 and 10 /3x^5
A. 39x^7
B. 39x^35
C.39x^12
D.39x^2
please help

Answer 1

take the numbers first - what is the lowest number into which both 3 and 13 divide?

Answer 2

lol - its there in every option!

Answer 3

now you need the lowest term in x intio which x^5 and x^7 both divide

Answer 4

gotta go right now

Answer 5

you need a 3, you need a 13, and you need a \(x^7\)

Answer 6

that makes it
\[39x^7\]

Answer 7

so A in this case