High School · Arithmetic with Polynomials and Rational Expressions

CCSS.MATH.CONTENT.HSA.APR.D.7

(+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions.

Read this standard on the official Common Core site

Lessons that teach this standard

• Rational Expressions: Simplifying, Multiplying, Adding

  How rational expressions follow the rules of fractions, why only common factors cancel, how to multiply and divide them, and how to add them over a common denominator.