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Reduce these fractions into lowest terms.

$\dfrac{14}{42}=$

$\dfrac{8}{30}=$

$\dfrac{70}{90}=$

Solution

With $\frac{14}{42}\text{,}$ we have $\frac{2\cdot7}{2\cdot3\cdot7}\text{,}$ which reduces to $\frac{1}{3}\text{.}$

With $\frac{8}{30}\text{,}$ we have $\frac{2\cdot2\cdot2}{2\cdot3\cdot5}\text{,}$ which reduces to $\frac{4}{15}\text{.}$

With $\frac{70}{90}\text{,}$ we have $\frac{7\cdot10}{9\cdot10}\text{,}$ which reduces to $\frac{7}{9}\text{.}$

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