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Type the numerator and denominator
of the fraction that represents the pieces shown in the image.
After typing each number you have
to hit Enter.
When your answer is right, the message CORRECT will appear.
When you click on Init another quantity will appear at random. Try
to do it several times.
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In the second
window the unit is a square. If we took a segment instead of a square
as a unit, we could represent fractions or rational numbers on a line,
as we do with natural, whole and decimal numbers.
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