SSAT Upper Level Quantitative - How to find the lowest / least common denominator

What is the least common denominator for the fractions $\frac{1}{5}$ and $\frac{5}{6}$ ?

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that is in both sets.

Find the least common denominator for the fractions $\frac{1}{8}$ and ${}\frac{8}{9}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{9}{16}$ and $\frac{4}{5}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{5}{6}$ and $\frac{2}{7}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{1}{11}$ and $\frac{4}{7}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{4}{5}$ and $\frac{8}{7}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{9}{4}$ and $\frac{2}{3}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{8}{15}$ and $\frac{9}{10}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{4}{7}$ and $\frac{3}{2}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

Find the least common denominator for the fractions $\frac{1}{14}$ and $\frac{7}{28}$ .

To find the least common denominator, list out the multiples for each denominator then choose the lowest one that appears in both sets.

How to find the lowest / least common denominator