12. \( \frac{4}{11}+\frac{10}{11}= \)

When adding fractions with the same denominator, you simply add the numerators together while keeping the denominator the same. So, in this case, you add \(4\) and \(10\) to get \(14\), and the denominator remains \(11\). Therefore, \( \frac{4}{11} + \frac{10}{11} = \frac{14}{11}\), which can also be expressed as \(1 \frac{3}{11}\) as a mixed number! Now, here’s a fun tip: Whenever you end up with a numerator that's larger than the denominator, you can convert it to a mixed number. Just divide the numerator by the denominator, and the quotient is your whole number, while the remainder becomes the new numerator. So, in our case, \(14\) divided by \(11\) gives \(1\) as the whole number and \(3\) as the remainder, leading to \(1 \frac{3}{11}\)!