Answer:
211/30 or 7 1/30
Explanation:
first make them into improper fractions:
21/5 and 17/6
second find a common denominater (im using 30) and multiply so they have 30 as the denominater:
126/30 and 85/30
third add the improper fractions:
126/30 + 85/30 = 211/30 and as a mixed number it would be 7 1/30
hope this helps