To add two fractions, we need to find a common denominator. Once we have a common denominator, we can add the numerators and simplify the resulting fraction if possible.
Step 1: Simplify the Fractions
First, we simplify the given fractions:
\[
\frac{10}{36} = \frac{5}{18}
\]
\[
\frac{9}{48} = \frac{3}{16}
\]
Step 2: Find a Common Denominator
Next, we find a common denominator for the fractions \(\frac{5}{18}\) and \(\frac{3}{16}\). The least common multiple (LCM) of 18 and 16 is 144.
Step 3: Convert Fractions to Common Denominator
Convert each fraction to have the common denominator of 144:
\[
\frac{5}{18} = \frac{5 \times 8}{18 \times 8} = \frac{40}{144}
\]
\[
\frac{3}{16} = \frac{3 \times 9}{16 \times 9} = \frac{27}{144}
\]
Step 4: Add the Fractions
Add the fractions with the common denominator:
\[
\frac{40}{144} + \frac{27}{144} = \frac{40 + 27}{144} = \frac{67}{144}
\]
Final Answer
The sum of the fractions is:
\[
\boxed{\frac{67}{144}}
\]