Run your own bakery by using fraction division to scale recipes — step by step.Dirige tu propia pastelería usando la división de fracciones para escalar recetas, paso a paso.
To divide fractions, multiply the first fraction (dividend) by
the reciprocal of the second fraction (divisor).
Formula:
A/B ÷ C/D = A/B × D/C = (A × D) / (B × C).
Para dividir fracciones, multiplica la primera fracción
(dividendo) por el recíproco de la segunda fracción
(divisor).
Fórmula: A/B ÷ C/D = A/B × D/C
= (A × D) / (B × C).
Dividing a whole number by a unit fraction (1/d) is simple:
multiply the whole number by the denominator (d).
Why it works: Each 1 whole contains exactly 'd'
groups of 1/d. So 'W' wholes contain W × d groups.
Compare your roll cut slice yield against typical professional bakery batch ranges:
| Bakery Item | Slice / Portion Yield Range | Dough Prep Method |
|---|---|---|
| Croissants | 6 – 8 per batch | Laminated butter layers |
| Cinnamon Rolls | 8 – 10 slices per log | Spiral yeast roll-up |
| Artisan Baguette | 12 – 16 slices per loaf | Classic french roll cuts |
| Sourdough Loaf | 10 – 14 slices per loaf | Rustic scoring & slicing |
1. Convert the mixed number length (W N/D) to an improper
fraction: (W × D + N) / D.
2. Divide the improper fraction by the slice size (multiply by
reciprocal).
Example: 2 1/2 = 5/2. Then 5/2 ÷ 1/4 = 5/2 × 4/1
= 20/2 = 10 slices.
| Skill | 4 — Expert | 3 — Proficient | 2 — Developing |
|---|---|---|---|
| Fraction Division (6.NOS.1) | Calculated portions, batch servings, and roll slices with 100% accuracy and step-by-step reciprocal logic. | All calculations correct across steps 1, 2, and 3. | Some correct division calculations, but with reciprocal or simplification errors. |
| Modeling & Visuals | Explains visually how many groups fit in, using dynamic SVGs to verify numerical quotients. | Correctly interacts with and references the visual models. | Models show values but are not connected to the division equations. |
| Real-World & Peer Analysis | Explains clearly how divisor size affects the quotient size, referencing partner comparison and bakery yields. | Completed partner swap and real bakery comparisons. | Incomplete comparisons or simple statements without numeric comparison. |
| Menu Card Presentation | Writes an engaging, professional menu description using precise vocabulary and real computed values. | Written menu card description includes recipe yields. | Written description is incomplete or lacks numbers. |
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