Same denominators — add the numerators and keep the denominator.

• \( \frac{8}{10} + \frac{3}{10} = \frac{8+3}{10} = \frac{11}{10} \)
• \( \frac{11}{10} = 1\frac{1}{10} \)
• None of the given options (1/10, 2/10, 1/10, 11/20) equals 11/10.

Final Answer: \( \frac{11}{10} \) (none of the listed options match)