Question

Multiply $2\frac{7}{10}$ by 5.

• A. $\frac{14}{4}$
• B. $\frac{27}{2}$
• C. $\frac{14}{2}$
• D. $\frac{18}{10}$

Answer 1

The correct option is B $\frac{27}{2}$

We have to first convert mixed number $2\frac{7}{10}$ into an improper fraction.

$2\frac{7}{10}=\frac{2\times 10+7}{10}=\frac{20+7}{10}=\frac{27}{10}$

$\therefore 2\frac{7}{10}\times 5=\frac{27}{10}\times 5=\frac{27\times 5}{10}=\frac{27\times 5}{5\times 2}=\frac{27}{2}\left(\text{Canceling the 5s}\right)$