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An animated guide in which fractions multiply to make baby fractions and a rather violent fraction divides numbers with a chainsaw.

Use to illustrate the processes of multiplying fractions, and reinforce the idea of multiplying across the way, numerator multiplied by numerator, denominator by denominator. For division, explain both the method shown of switching round the numerator and denominator of the divisor and multiplying across or alternatively multiplying diagonally and discuss that these are different ways of performing the same process.