To compare two ratios you scale them to a common number and see which is bigger — the same skill as comparing fractions with a common denominator. Warm up scaling fractions and comparing and the comparison is clear.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 The same bottom number for two fractions so you can compare them fairly.
Example: To compare 1/2 and 2/3, use a common denominator of 6.
Level 1 Fractions that look different but show the same amount.
Example: 1/3 = 2/6 — multiply top and bottom by 2.
Level 1 When one amount is bigger than another. The symbol is >.
Example: 5 > 3 means 5 is greater than 3.
Level 1 When one amount is smaller than another. The symbol is <.
Example: 2 < 4 means 2 is less than 4.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. Which is greater?
2. 1/3 = ?/6 — the missing top number is…?
3. Which fraction is bigger: 3/6 or 4/6?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 3-5 →