The fundamental operation in simplifying mathematical expressions consisting of the same type of operation, we perform one operation at a time generally starting from the left towards the right. If an expression has more than one fundamental operation, you cannot perform operations in the order they appear in the given question. We need to follow the rules to perform the operations. Some operations have to be performed before the others. That is, each operation has its precedence.
Generally, the order in which we perform operations sequentially from left to right is division, multiplication, addition, subtraction.
This order is expressed in short as ‘DMAS’ where ‘D’ stands for division, ‘M’ stands for multiplication, ‘A’ stands for addition and, ‘S’ for subtraction.
Here are one more fundamental operations in mathematics: and it is modular forms.