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Dividing whole numbers by unit fractions visually


If 3 is divided into pieces that are each 15 of a whole, how many pieces are there?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
A tape diagram divided into 15 equal parts. All parts are shaded. Across the tape diagram is a curved bracket labeled with a question mark. Below the tape diagram, is a number line labeled 0 to 3 with a tick mark at every one-fifth unit and a labeled tick mark at every unit. There is a line moving right across the number line from 0 to 3.