### Home > CC4 > Chapter 1 > Lesson 1.1.2 > Problem 1-21

1-21.

Calculate the value of each of the following expressions. Homework Help ✎

Review the Order of Operations in the glossary if you need help remembering it.

Evaluate the numerator and the denominator separately using the Order of Operations.

Evaluate the expression within the innermost parentheses first. Continue evaluating the resulting expression.