UK currency was decimalised in 1971. Before that it was 12 pence per shilling, 20 shillings per pound. Not ideal to work with (there's a reason they switched),

UK currency was decimalised in 1971. Before that it was 12 pence per shilling, 20 shillings per pound. Not ideal to work with (there's a reason they switched), but still pretty straightforward.