Add Subtract Fractions

 teachMathematics: Add Subtract Fractions

The following geogebra activities require you to move the slider and find a common slice of pie that fits perfectly into both fractions. Move the point on the third circle to show visually what the fractions add up (or subtract) to make. Once you have found this common piece of pie (common denominator) it should make it a lot easier to work out the denominator and numerator of the final fraction. Enter your numerical...

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