Answer:
I do believe the answer is 2
Explanation:
you need a common denominator so you multiply 5/7 by two to make 7, 14. What you do to the bottom you do to the top so your fraction turns into 10/14. She cuts pieces that are 5/14 long so 10/14-5/14=5/14-5/14=0 so she cuts 2 pieces