Represent unit fractions, their multiples and parts needed to make a whole.
Example 1
A whole ribbon is divided into 2 equal parts. 21 is coloured. How many more 21 parts must be coloured to complete the whole?
Equal partsShow worked answer
Answer: 1
- One whole is 22.
- There are 2−1=1 uncoloured parts.
Example 2
30 counters are shared equally among 10 children. Each child receives 101 of the collection. How many counters does one child receive?
Show worked answer
Answer: 3
- The fraction 101 means one of 10 equal shares.
- 1030=3 counters per share.
Example 3
A whole ribbon is divided into 5 equal parts. 51 is coloured. How many more 51 parts must be coloured to complete the whole?
Equal partsShow worked answer
Answer: 4
- One whole is 55.
- There are 5−1=4 uncoloured parts.