Чему равна сумма дробей

\(\displaystyle \frac{3}{5}+\frac{1}{5}=\,?\)

• \(\displaystyle \frac{3}{5}\)
• \(\displaystyle \frac{4}{10}\)
• \(\displaystyle \frac{3}{7}\)
• \(\displaystyle \frac{4}{5}\)