Warnings Excel will only produce binary numbers with up to 10 bits. This means that it can only convert decimal numbers greater than -513 and less than 512.

Revise the methods of converting numbers to recurring decimals and, recurring decimals to fractions, and using dot notation in this maths guide.

Learn how to use Windows Calculator to convert Decimal to Binary in Windows 11/10. You have to use the Programmer mode to do this.

Learn how to multiply whole numbers and decimal fractions to three decimal places with this BBC Bitesize Scotland Maths guide for 3rd Level CfE.