**Decimal fractions** are fractions whose denominators are a

power of 10.

Equivalent decimal fractions can be found by multiplying by a fraction

equal to one with a

power of 10 in its numerator and denominator.

Equivalent fractions represent the same value.

One way to find equivalent fractions is to multiply the given fraction by a fraction equivalent to 1.

Since 10 times 10 is 100, multiply $\frac{3}{10}$ by $\frac{10}{10}$ to find a fraction that is equivalent to $\frac{3}{10}$ and has a denominator of 100.

$\frac{3}{10}\times \frac{10}{10}=\frac{30}{100}$

So, $\frac{3}{10}$ is equivalent to $\frac{30}{100}$.