How do you convert shillings and pence into decimal? - Answers

With great difficulty. The easy bit was shillings: there were 20 shillings in a pound and 100 decimal pennies. At the time of their introduction, the latter were called New Pence (NP) and I will stick to that notation.So 1 shilling = 0.05 pounds = 5 NP.The problem came with converting 12 [old] pennies in a shilling to 5 NP. A saving grace was that there was still a 1/2 New Penny coinFormally, that was done though rounding:1p = 0.41666... NP2p = 0.83333... NP3p = 0.1.25 NP4p = 0.16666... NP5p = 2.08333... NP6p = 2.5 NP7p = 2.91666... NP8p = 3.33333... NP9p = 3.75 NP10p = 4.1666... NP11p = 4.5833... NP12p = 5.0 NPConversion tables were published but I am sure that many people were ripped off before the transition settled down.