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Math Life

Intro to Ratios

Professor Orion Hawthorne Math Worksheets
Intro to Ratios

Intro to Ratios — title slide

Slide 2: A ratio compares two quantities — a:b notation explained

Slide 3: Equivalent ratios — multiplying both sides by the same number

Slide 4: Simplifying ratios by dividing by the greatest common factor

Slide 5: Part-to-part vs part-to-whole ratios

Slide 6: Using ratios in real-world problems — recipe scaling example

Slide 7: Solving for an unknown quantity in a ratio

Slide 8: Cross-multiplication for solving proportion problems

Slide 9: Word problem walkthrough — applying ratios step by step

Slide 10: Practice problem set for ratios

Slide 11: Summary and key takeaways — when to use ratios

Download the slide deck (PPTX)

Learning Objectives of Presentation Material

  1. Define ratios
  2. Learn how to solve ratios
  3. Practice solving ratio word problems
  4. Identify real-life applications

This presentation material is free to download and print, making it a great resource for teachers, students, and parents. Use it as a reference, study aid, or classroom material to reinforce learning. Print it out and start learning or teaching ratios today!

Professor Orion Hawthorne Senior faculty member specializing in combinatorics, with 25+ years teaching mathematics. Mentors graduate students and runs community workshops on real-world applications of theoretical math.