a. You need to find the number of yards of fabric that Lisa needs to make 3 dog coats.
b. The information you need is the amount of dog coats Lisa wants to make, and the number of yards of fabric it takes to make 1 dog coat.
c. Adding and simplifying:
5/6 + 5/6 + 5/6
15/6
2 3/6
2 1/2 yards
d. Lisa needs 2 1/2 yards of fabric to make 3 dog coats.
Hope this helps!! :)