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Grade 7 Math Lab: The Algebraic Pivot FREE

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Operations with Rational Numbers

55 min Grade 7 Math Lab: The Algebraic Pivot

Learning Objectives

  • Multiply and divide fractions
  • Work with mixed numbers
  • Apply to real problems

Key Concepts

Rational Number

A number that can be written as a fraction

Reciprocal

Flip the fraction - multiply to get 1

Theory

To divide fractions: Keep, Change, Flip. Keep first, change ÷ to ×, flip second.

Examples

²⁄₃ ÷ ⁴⁄₅

Solution: ²⁄₃ × ⁵⁄₄ = ¹⁰⁄₁₂ = ⁵⁄₆