How to find the lowest / least common denominator

Practice Questions

SAT Math › How to find the lowest / least common denominator

Questions

3

1

What is the Lowest Common Denominator of $\frac{1}{6}$ , $\frac{1}{3}$ and $\frac{1}{7}$ ?

2

What is the lowest common denominator of the fractions below?

$\frac{1}{6}, \frac{4}{21}, \frac{2}{3}$

3

3/5 + 4/7 – 1/3 =

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