Give fractions the same-sized parts
Use any valid common denominator to compare unlike fractions.
Explore this lesson →10 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- Keep the whole measure fixed for both fractions.
- Rename both amounts with the same denominator; the least denominator is not required.
- Compare the selected counts because each new part has equal measure.
Something to notice
Ask the learner to point to one equal-sized part in each model and explain why comparing selected counts works.
Try it. Change it. Explain it.
Open the lesson to use its pictures and controls. In How it works, connect the picture to the idea. In Play & discover, change the quantities and notice what stays the same. In Your turn, answer questions and use the explanation to check your reasoning.
You can ask for help, draw on the thinking pad, or listen to the question and answer options. Progress distinguishes independent work from work completed with help.
Let’s try it →Curriculum connection
Grade 4 · 4.NF · US Common Core
This lesson is mapped to these standards. A completed activity is practice evidence, not a claim of mastery. Content is checked against the linked official standards and its mathematical models are tested.