When parentheses are nested, the innermost parenthesized sub-expression is evaluated first before the surrounding expression is processed.
Programming in C MCQ - Operators and Expressions
Multiplication has higher arithmetic precedence than addition, so multiplication is performed first unless parentheses alter the grouping.
Parentheses explicitly group parts of an expression and can control the intended evaluation order.
Multiplication, division and remainder (*, / and %) belong to the same general arithmetic precedence level in the grouping used here.
Addition and subtraction have lower arithmetic precedence than multiplication and division, so * and / normally bind before + and -.

