Comparing Fractions with Different Denominators

Free to teach as-is — the teacher guide, student handout, and slides are included.

Free — we'll email you an access link. Google Docs format.

Objective

I can compare fractions with unlike denominators by finding a common denominator.

Part 1 of 4

Warm-up video

mathantics · 6:31Vetted channel

We don't generate video — this one is by mathantics on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    Comparing fractions means determining which fraction is bigger in value.

  2. 2

    One method for comparing fractions is called cross-multiplying, which involves multiplying the top number of each fraction by the bottom number of the other fraction.

  3. 3

    Another method for comparing fractions is to convert each fraction to its decimal value by doing division and then comparing the decimal values.

Part 3 of 4

Practice

3 questions

1

Which method involves multiplying the top number of each fraction by the bottom number of the other fraction?

2

Explain how converting fractions to decimals can help in comparing them.

Part 4 of 4

Exit ticket

Quick comprehension check

Use cross-multiplication to determine which fraction is greater: ⅗ or ⅔. Show your work.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

    Ready to present

We'll ask for your email to send your access link — nothing else.

Teaching a group at a different level?

Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.

Adapt This Lesson