Divide both the numerator and denominator by their HCF. The fraction has now been simplified. Knowing multiplication and division facts may make simplifying fractions easier. The HCF of 4 and 10 ...

The fraction may be simplified when the numerator and denominator have a common factor greater than one. Units are often referred to as ones. Eg, 4∙2 has 4 units and 2 tenths, or you could say 4 ...

There's a helpful shortcut worth remembering: if your fractions already share the same denominator, you can skip straight to adding or subtracting the numerators.