8. Gill scored a goal half way through the second quarter of a ‘teachers versus pupils’ netball match.
At that point, what fraction of the whole match remained to be played?
Adding four of the five fractions $\frac{1}{2},\frac{1}{3},\frac{1}{6},\frac{1}{9}$ and $\frac{1}{18}$ gives a total of 1.
Which of the fractions is not used?