In Microsoft Excel, you can convert a number into a fraction using the Fraction format. Learn how to display Numbers as Fractions in Excel.

Ratios, fraction and percentages can all show proportion. Find out more in this Bitesize Primary Second Level Maths guide.

A usable fraction is a fraction you can use to measure with (i.e., 1/2, 1/4, 1/8, 1/16 inch). You measure with fractions of an inch. However, your calculator works in decimals of an inch.