What is 42/72 Divided By 1/9

Solving $\frac{42}{72}\div\frac{1}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{42}{72} \div \frac{1}{9} = \frac{42}{72} \times \frac{9}{1}$

• Multiply the Numerators: $42 \times 9 = 378$
• Multiply the Denominators: $72 \times 1 = 72$
• Form the New Fraction: $\frac{42}{72} \times \frac{1}{9} = \frac{378}{72}$

Let's Simplify $\frac{378}{72}$

• Find the Greatest Common Divisor (GCD) of $378$ and $72$. The GCD of $378$ and $72$ is $18$.
• Divide both the numerator and the denominator by the GCD:$\frac{378 \div 18}{72 \div 18} = \frac{21}{4}$

Answer $\frac{42}{72}\div\frac{1}{9} = \frac{21}{4}$

The following animation demonstrates the divide-by,