1. The problem is to find the sum of 97 and 19. 2. The formula for addition is simply $a + b = c$, where $a$ and $b$ are the numbers to add, and $c$ is the result. 3. Applying the formula: $97 + 19$ 4. Add the units digits: $7 + 9 = 16$, write down 6 and carry over 1. 5. Add the tens digits plus the carry: $9 + 1 + 1 = 11$. 6. Combine the results: $116$. 7. Therefore, the sum of 97 and 19 is $116$.