A ratio is a way to compare how many of one thing there are next to another thing.
2 dogs for every 1 cat.
We say this out loud as “two to one”.
Tap Next and let's learn how ratios work, step by step! 👉
A ratio compares two amounts. Here are some apples and oranges. Count them!
3 apples and 2 oranges.
We write the ratio of apples to oranges as:
The little dots : mean “to”. Order matters — apples first, oranges second.
👉 Next, you'll try counting one yourself.
Here is a row of stars and moons. Tap each shape to count it, then tell me the ratio of stars to moons.
What is the ratio of ⭐ stars : 🌙 moons?
Let's make the ratio 3 : 1 of fish to bones. Drag the right number of each into the baskets.
Tip on a tablet: tap a token, then tap a basket to drop it.
Magic of ratios: 2 : 1 can become 4 : 2 or 6 : 3. As long as both sides grow the same number of times, it's the same ratio!
To make orange squash, you mix 1 cup of syrup with 3 cups of water. That's a ratio of 1 : 3.
If a friend wants to use 2 cups of syrup, how much water keeps the same tasty ratio?
Hint: syrup doubled (1 → 2), so water must double too.
A classroom has 5 girls and 4 boys. What is the ratio of girls to boys?
Remember: write them in the order asked — girls first!
Let's recap what a ratio is:
🔹 A ratio compares two amounts, written like a : b and said as “a to b”.
🔹 Order matters — write them in the order you're asked.
🔹 A ratio stays the same when both sides grow the same number of times (2 : 1 = 4 : 2 = 6 : 3).
🔹 Ratios are everywhere — drinks, recipes, teams and games! 🥤⚽
Well done, ratio detective! Tap Start again any time to play once more. ✨