To find the total amount of ribbon she has, we need to add up all of the fractions.
First, we need to find the common denominator.
6 × 2 = 12
4 × 3 = 12
Our least common denominator is 12.
Now, we convert the fractions and add.
7 1/6 = 7 2/12
5 1/4 = 5 3/12
5 1/6 = 5 2/12
7 2/12 + 5 3/12 + 5 2/12 = 17 7/12
Hope this helps!