Equivalent ratios are equal ratios, just like equivalent fractions. You make them by multiplying both numbers up — or by simplifying both down. Warm up scaling and simplifying fractions and this is the same move.
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 Fractions that look different but show the same amount.
Example: Multiply top and bottom by 2: 1/2 = 2/4.
Level 1 To divide top and bottom by the same number to make smaller numbers.
Example: Simplify 4/6 by dividing both by 2 to get 2/3.
Level 1 To add the same number many times to find a total.
Example: 3 × 3 = 9.
Level 1 To split a number into equal groups.
Example: 12 ÷ 3 = 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. 1/2 = ?/4 — the missing top number is…?
2. Simplify 4/6 by dividing both by 2:
3. What is 12 ÷ 3?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 3-4 →