Activities/Abacus/Worksheet

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Fractions

Start Abacus Abacus-icon.png,


select the Fraction abacus.

Functionabacus.jpg


Slide one of the 1/2 beads to represent 1/2

Abacus1of2.jpg


Another way to represent 1/2 is to slide half of another string of fraction beads, for example slide 2 of the 1/4 beads. That is (2 x 1)/4 = 2/4 = 1/2

Abacus2of4.jpg


How many ways can you make 1/2, see the answersheet


Only some of the strings of beads can be used to make 1/2. Which ones? Why? see the answersheet