How to find the lowest / least common denominator

SSAT Upper Level Quantitative · Learn by Concept

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

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

CORRECT

Explanation

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 ${}\frac{8}{9}$ .

CORRECT

Explanation

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 $\frac{4}{5}$ .

CORRECT

Explanation

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 $\frac{2}{7}$ .

CORRECT

Explanation

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 $\frac{4}{7}$ .

CORRECT

Explanation

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 $\frac{8}{7}$ .

CORRECT

Explanation

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 $\frac{2}{3}$ .

CORRECT

Explanation

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 $\frac{9}{10}$ .

CORRECT

Explanation

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 $\frac{3}{2}$ .

CORRECT

Explanation

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 $\frac{7}{28}$ .

CORRECT

Explanation

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

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