Activities/Abacus/Worksheet

Fractions

Start Abacus ,

select the Fraction abacus.

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

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

How many ways can you make 1/2, remember you can use 2 strings eg. 1/3 + 1/6 = 1/2

If using just one string, only some of the strings of beads can be used to make 1/2. Which ones? Why?

How do you know if you have found all the solutions?

see the answersheet