What is 3 and 5 over 11 plus 7 and 2 over 3?

Answer 1

When working with mixed numbers it is usually easier to convert to improper fractions, work with the numbers and convert any resulting improper fraction back to a mixed number:

3 5/11 + 7 2/3 = (3×11+5)/11 + (7×3+2)/3

= 38/11 + 23/3

= (38×3)/(11×3) + (23×11)/(3×11)

= 114/33 + 253/33

= 367/33

= (11×33+4)/33

= 11 4/33

Answer 2

3*511 + 7*23 = 1694