Convert Fraction to Decimal: Finding the Decimal Form of 3/10

To solve this problem, let's convert the fraction $\frac{3}{10}$ into a decimal.

First, identify the given fraction: $\frac{3}{10}$.

Since the denominator is 10, a power of 10, the conversion to a decimal is straightforward. The fraction $\frac{3}{10}$ can be interpreted as dividing 3 by 10.

Perform the division: $3 \div 10 = 0.3$.

This results in the decimal number $0.3$.

Therefore, the decimal conversion of the fraction $\frac{3}{10}$ is $\mathbf{0.3}$.