N12: interpret fractions and percentages as operators

1/4×3/5

1/4×3/5

3/20

3/5 of £130

130/5=26

26×3=78

£78

31% of 70

70×0.31=21.7

5×2/7 as a mixed number

5/1×2/7=10/7

10-7=3

1 3/7