Verified answer

Answer:

8 13/14

Step-by-step explanation:

6 3/7 + 2 4/8

_ _

56 56 (LCD)

56÷7=8×3= 24/56

56÷8= 7×4= 28/56

24+28= 52

6+2= 8 (The whole number)

8 52/56 (Can still lower)

52×2= 26

56×2= 28

(Can still lower)

26×2= 13

28×2= 14

8 13/14