William has two 10-sided spinners.
The spinners are equally likely to land on each of their sides.
Spinner A has 5 red sides, 3 blue sides and 2 green sides.
Spinner B has 2 red sides, 7 blue sides and 1 green side.
William spins spinner A once.
William spins spinner B once.
Work out the probability that spinner A and spinner B do not land on the same colour.