Equivalent Fractions or Not? Activity

This applet explores the idea of equivalent proper fractions.  The top part of the screen is the reference area. Here we enter a new proper fraction and see it as a part of a unit square. The bottom part of the screen is for experimenting with the fraction.
  • Enter a new proper fraction.
  • Drag the slider to select a non-zero whole number.
  • Click on the "Multiply" button to multiply the numerator and the denominator by this number.
  • Drag the "Compare the Fractions" slider to represent the original and the new fraction on the number line.
  • Click the "Add" button to experiment with adding the same number to the numerator and the denominator.
  • Drag the "Compare the Fractions" slider to represent the original and the new fraction on the number line.

Expanding Fractions

Enter the fraction ⅔ Multiply the numerator AND the denominator by 2. We call this process Expanding of fractions.

  • Compare the original and the expanded fraction.
  • Multiply the numerator AND the denominator by 5.
  • Compare the original and the expanded fraction.
Repeat the steps above by choosing different fractions and multiplying the numerator AND the denominator by the same nonzero whole number.

Check all that apply

Justify your answer

Adding to the numerator and the denominator

Enter the fraction ⅔

  • Add 2 to the numerator AND the denominator.
  • Compare the original and the new fraction.
  • Add 5 to the numerator AND the denominator.
  • Compare the original and the new fraction.
Repeat the steps above by choosing different fractions and adding the same nonzero whole number to the numerator AND the denominator.

Check all that apply

Justify your answer