Question

Find the lowest common denominator of the following fractions.


A.) 24y2
B.) 24(y2 - 1)
C.) 24(y2 - 1)(y + 1)

Answer 1

Answer:

  B.)  24(y² -1)

Step-by-step explanation:

The denominator of the first fraction is 2³(y +1).

The denominator of the second fraction is 2·3(y +1)(y -1).

The LCD is the product of the unique factors to their highest powers:

  2³·3·(y +1)(y -1) = 24(y² -1)

Answer 2

Answer:

B

Step-by-step explanation: