Logical functions are executed through logic gates. So if the logical functions are simple, in reality the use of logic gate is easier. Boolean formulas can be used to simplify complex logical expressions. Simplification of boolean numbers reduces the number of corresponding logic gates , thus reducing time and cost. In the case of simple arithmetic, such rules are followed. Similarly, in the case of simplification of logic functions with the help of Boolean theorem, a number of rules are followed. If the rules are followed - simplification should be done from left side to right side. The work inside the first bracket has to be done first. Complementary operations need to be done at the beginning. Then all end (.) Operations have to be done. The first thing that can be found is to do it first. All other (+) operations must be completed.