SOLUTION: Susan needs to walk 1 1/4 miles this week for a physical fitness challenge. she has already walked 5/6 of a mile. How much farther does she need to walk to complete the challenge?

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Question 1161676: Susan needs to walk 1 1/4 miles this week for a physical fitness challenge. she has already walked 5/6 of a mile. How much farther does she need to walk to complete the challenge?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
simple subtraction