Fractions addition and subtraction trick

Forget finding common denominators when adding dissimilar fractions - this way is much faster and easier.

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Square and Cube Roots

Square and Cube Roots

Find square roots and cube roots by first calculating the prime factorisation of a number. So far this activity has been accessed 39 times and 27 people have earned a Transum Trophy for completing it.

Teacher: Click the play button in the centre of the video screen above. In the bottom right corner of the video (when you cursor moves over the playing video) is a broken square button which opens full-screen mode.

Fractions addition and subtraction trick

Forget finding common denominators when adding dissimilar fractions - this way is much faster and easier.

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