7/12+8/12

To add the fractions \( \frac{7}{12} \) and \( \frac{8}{12} \), you simply add the numerators since they have the same denominator:

\[ \frac{7 + 8}{12} = \frac{15}{12} \]

You can simplify \( \frac{15}{12} \) by dividing both the numerator and the denominator by their greatest common divisor, which is 3:

\[ \frac{15 \div 3}{12 \div 3} = \frac{5}{4} \]

Thus, \( \frac{7}{12} + \frac{8}{12} = \frac{5}{4} \) or \( 1 \frac{1}{4} \) as a mixed number.