SAT Math - How to find decimal fractions

$\left (\frac{3.75}{8}\right ) \left (\frac{2.54}{5} \right )=$

Multiply both the numerators or denominators by 100 to eliminate the decimals

$\left ( \frac{375}{800} \right ) \left ( \frac{254}{500} \right )=$

Simplify both fractions

$\left ( \frac{15}{32} \right ) \left ( \frac{127}{250} \right )=$

Multiply the numerators and multiply the denominators and simplify the fraction by dividing both the numerator and denominator by 5.

$\left ( \frac{1905}{8000} \right )= \left ( \frac{381}{1600} \right )$

How to find decimal fractions