Here's how to add


Step 1Since our denominators match, we can add the numerators. 3 + 7 = 10 Now we have an answer.


Step 2Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction? To find out, we try dividing it by 2... Nope. Try the next prime number, 3... Nope. Try the next prime number, 5... Nope. Try the next prime number, 7... Nope. Try the next prime number, 11... No good. 11 is larger than 10. So we're done reducing. Congratulations! Here's your final answer to 3/9 + 7/9
