Ratio Basics

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Thames
T
Thames
Community Contributor
Quizzes Created: 7153 | Total Attempts: 9,523,263
| Questions: 15 | Updated: Oct 13, 2025
Please wait...
Question 1 / 15
0 %
0/100
Score 0/100
1) Can you simplify the ratio 12:18?

Explanation

Divide both by 6 → 12 ÷ 6 = 2, 18 ÷ 6 = 3.

Submit
Please wait...
About This Quiz
Ratio Basics - Quiz

Ever split snacks between friends or compared pencils to erasers in your box? That’s ratios! In this quiz, you’ll practice simplifying simple ratios step by step to see how quantities relate. Take this quiz to master the basics of ratios with easy, real-life examples.

2)
We’ll put your name on your report, certificate, and leaderboard.
2) The number of apples to oranges is 8:12. Simplify this ratio.

Explanation

Divide both by 4 → 8 ÷ 4 = 2, 12 ÷ 4 = 3.

Submit
3) The ratio 15:20 simplifies to 3:4.

Explanation

Divide both by 5 → 15 ÷ 5 = 3, 20 ÷ 5 = 4.

Submit
4) The ratio of boys to girls in a class is 10:25. Can you simplify it?

Explanation

Divide both by 5 → 10 ÷ 5 = 2, 25 ÷ 5 = 5.

Submit
5) Which is the simplest form of 9:12?

Explanation

Divide both by 3 → 9 ÷ 3 = 3, 12 ÷ 3 = 4.

Submit
6) Simplify 18:42.

Explanation

Divide both by 6 → 18 ÷ 6 = 3, 42 ÷ 6 = 7.

Submit
7) If a class has 12 boys and 16 girls, what is the simplified ratio of boys to girls?

Explanation

Divide both by 4 → 12 ÷ 4 = 3, 16 ÷ 4 = 4.

Submit
8) Simplify the ratio 100:400.

Explanation

Divide both by 100 → 100 ÷ 100 = 1, 400 ÷ 100 = 4.

Submit
9) 30:45 simplifies to 2:3.

Explanation

Divide both by 15 → 30 ÷ 15 = 2, 45 ÷ 15 = 3.

Submit
10) Which of these ratios is equivalent to 4:6?

Explanation

4:6 simplifies to 2:3. Multiply → 6:9 is also equivalent.

Submit
11) Simplify the ratio 21:14.

Explanation

Divide both by 7 → 21 ÷ 7 = 3, 14 ÷ 7 = 2.

Submit
12) In a recipe, the ratio of flour to sugar is 6:9. Simplify the ratio.

Explanation

Divide both by 3 → 6 ÷ 3 = 2, 9 ÷ 3 = 3.

Submit
13) Simplify 35:49.

Explanation

Divide both by 7 → 35 ÷ 7 = 5, 49 ÷ 7 = 7.

Submit
14) The simplest form of 44:66 is 2:3.

Explanation

Divide both by 22 → 44 ÷ 22 = 2, 66 ÷ 22 = 3.

Submit
15) Simplify 9:15.

Explanation

Divide both by 3 → 9 ÷ 3 = 3, 15 ÷ 3 = 5.

Submit
View My Results
Cancel
  • All
    All (15)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Can you simplify the ratio 12:18?
The number of apples to oranges is 8:12. Simplify this ratio.
The ratio 15:20 simplifies to 3:4.
The ratio of boys to girls in a class is 10:25. Can you simplify it?
Which is the simplest form of 9:12?
Simplify 18:42.
If a class has 12 boys and 16 girls, what is the simplified ratio of...
Simplify the ratio 100:400.
30:45 simplifies to 2:3.
Which of these ratios is equivalent to 4:6?
Simplify the ratio 21:14.
In a recipe, the ratio of flour to sugar is 6:9. Simplify the ratio.
Simplify 35:49.
The simplest form of 44:66 is 2:3.
Simplify 9:15.
Alert!

Back to Top Back to top
Advertisement