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Mathematics

$\dfrac{42}{54}$ in simplest form is
$\dfrac{3}{4}$
$\dfrac{2}{3}$
$\dfrac{3}{7}$
$\dfrac{7}{9}$

Fractions

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Answer

By prime factorization,

$\Rightarrow \dfrac{42}{54} \\[1em] \Rightarrow \dfrac{2 \times 3 \times 7}{2 \times 3 \times 3 \times 3} \\[1em] \Rightarrow \dfrac{7}{9}.$

Hence, option 4 is the correct option.

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