Question

Write the following as decimal: $300+80+7+\frac{3}{10}$

Answer 1

To convert a fraction having $10$ in the denominator, we put the decimal point one place left of the first digit in the numerator.

Therefore, $\frac{3}{10}=0.3$

$\begin{array}{rcl}& \Rightarrow & 300+80+7+\frac{3}{10}=387+0.3\\ & =& 387.3\end{array}$

Hence, $300+80+7+\frac{3}{10}=387.3$