Partial fractions decomposition was the main aim of this lesson. A rational fraction with the denominator as a product of linear factors was decomposed into partial fractions. The partial fractions formula was set up before the lowest common denominator was multiplied on both sides of the equation. The method of comparing coefficients was used to find the values of the unknown constants. This tutorial on partial fractions answered questions such as what are partial fractions, how to decompose into partial fractions, what is the partial fractions formula for a rational fraction with the denominator expressed as a product of linear factors, how to do partial fractions, how do partial fractions work and how to break down into partial fractions. This tutorial was based on precalculus techniques of basic algebra and it is suitable for a level maths, grade 12 maths and engineering mathematics.