Express 3 5 as a rational number with numerator: 21 - Vidyadip

Question

Express $\frac{3}{5}$ as a rational number with numerator: $21$

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Answer

Rational number with numerator: $21$ is: $\frac{3\times7}{5\times7}=\frac{21}{35}$ (Multiplying numerator and denominator by $7$)

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