🍪 Fraction Snack Lab
Meet the two numbers in a fraction!
They sit close together, but they have two completely different jobs. Let’s pull a fraction apart and see what each number does.
38
Open the snack lab ↓
One snack. Two number jobs.
Use the buttons to split one whole snack, choose some pieces, and discover the fraction.
🔬 Guided experimentStep 1 of 5
Start with the whole
Here is one whole snack.
A fraction begins with one whole thing. Right now, we have not split it into pieces.
NUMERATOR → chosen pieces
DENOMINATOR → all pieces
counts the
pink pieces 38 counts all
equal pieces
pink pieces 38 counts all
equal pieces
✨ Aha! 3⁄8 means 3 chosen pieces out of 8 equal pieces in the whole.
Now you run the lab!
Change either number and watch its job happen.
🎛 Fraction controls
The bottom control splits the whole. The top control colours pieces.
Denominator: all equal pieces
Numerator: chosen pieces
Keep the pieces equal-sized. Fair shares are the secret ingredient!
25
The numerator 2 counts 2 pink pieces. The denominator 5 counts all 5 equal pieces.
⭐ You cracked the fraction code!
Look up. Look down.
Numerator = chosenThe top number counts the pieces we mean.
Denominator = whole splitThe bottom number counts all equal pieces in one whole.
Put the two jobs together and a fraction tells us: how many chosen pieces out of how many equal pieces altogether.