25
QuizMultiple Choice

Rational Functions — Test

Question 25 • Math 3

What is the common denominator of y plus the fraction with numerator y minus 3 and denominator 3 in the complex fraction the fraction with numerator y plus the fraction with numerator y minus 3 and denominator 3 and denominator 5 ninths plus 2 over 3 y ?

Answer
A
3
B
3 y open paren y minus 3 close paren
C
y times open paren y minus 3 close paren
D
3 y

Explanation

In the numerator, the terms are y and (y − 3)/3. Write y as 3y/3, so both terms have denominator 3. Therefore, their common denominator is 3, choice A.

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