Answer
a)LCD=45
b)LCD=3x-7
Work Step by Step
a)
$\frac{2}{9}$, $\frac{7}{15}$
9=3*3
15=3*5
LCD=3*3*5=45
b)
$\frac{3x}{3x-7}$, $\frac{7}{3x-7}$,
LCD=3x-7
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.