What is 42/39 Divided By 1/9

Solving $\frac{42}{39}\div\frac{1}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{42}{39} \div \frac{1}{9} = \frac{42}{39} \times \frac{9}{1}$

• Multiply the Numerators: $42 \times 9 = 378$
• Multiply the Denominators: $39 \times 1 = 39$
• Form the New Fraction: $\frac{42}{39} \times \frac{1}{9} = \frac{378}{39}$

Let's Simplify $\frac{378}{39}$

• Find the Greatest Common Divisor (GCD) of $378$ and $39$. The GCD of $378$ and $39$ is $3$.
• Divide both the numerator and the denominator by the GCD:$\frac{378 \div 3}{39 \div 3} = \frac{126}{13}$

Answer $\frac{42}{39}\div\frac{1}{9} = \frac{126}{13}$

The following animation demonstrates the divide-by,