Mark M. answered 09/13/16
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
total minus with Sabrina equals Katie alone
2 1/4 - 1 3/4 = Katie alone
9/4 - 7/4 = Katie LCD
2/4 = Katie combine
Katie walked 1/2 mile to Sabrina's house.