78/12+89/23

To calculate \( \frac{78}{12} + \frac{89}{23} \), let's first simplify \( \frac{78}{12} \):

\[ \frac{78}{12} = 6.5 \]

Next, we calculate \( \frac{89}{23} \):

\[ \frac{89}{23} \approx 3.869565217 \]

Now, let's add these two results together:

\[ 6.5 + 3.869565217 \approx 10.36956522 \]

Thus, \( \frac{78}{12} + \frac{89}{23} \approx 10.37 \) (when rounded to two decimal places).