The factors of the given expression are 2/5, a and b
The technique of representing a mathematical expression as the sum of its factors, or simpler components, is known as factoring. Factoring is the process of reducing a polynomial or algebraic statement to a product of simpler expressions, or factors, in algebra.
Given the expression 2/5 ab, for the factors;
2/5ab = 2/5 * a. * b
Hence we can conclude that the factors of the expression are 2/5, a and b