Part A:
Jessica has 1/2 yard of ribbon
1/2 yd = 0.5 yd
She uses an equal amount of ribbon to decorate 3 picture frames.
So, basically we need to divide the total amount of ribbon by 3:
0.5 yd/ 3 = 1/6 yd
Part B:
Let's first express the mixed number as a fraction:
1 1/3 yd = 4/3 yd
Alex uses the same amount of ribbon for each frame. And he needs to decorate 6, Hence:
We multiply the amount of ribbon in each frame, by the total of frames:
4/3 yd * 6 = 8 yd