# What is the value of 5.79*3.6?

$5.79$ can be written as $579 \times \frac{1}{100} = \frac{579}{100}$
Similarly, $3.6$ can be written as $36 \times \frac{1}{10} = \frac{36}{10}$
So, $5.79 \times 3.6 = \frac{579}{100} \times \frac{36}{100} = \frac{579 \times 36}{100 \times 10} = \frac{20844}{1000} = 20.844$