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Area of rectangles with fraction side lengths


The area of the entire figure below is 1 square unit.
What is the area of the striped rectangle?
Write your answer as a fraction.
  • Your answer should be
  • an integer, like 6
  • a proper fraction, like 1/2 or 6/10
  • an improper fraction, like 10/7 or 14/8
of a square unit