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Ready: one whole is divided into four equal parts; three are selected.

Fractions in math simulation

Parts · equivalence · comparison · operations

Visual experiment

Mission: build a fraction from equal parts of one whole.

Fraction controls

Numerator3

Denominator4

Second numerator1

Second denominator4

3 / 4 = 0.75 = 75%

Simulation

Speed1.00×

Live fraction reasoning

3 / 4fraction

0.75decimal

75%percent

Nonefocused object

Tap a slice, bar, point or plate to inspect its meaning.

Camera & tracking

Teacher tools

Touch pen, colors, text, fraction stamps, number line, geometric shapes and image import.

Interactive audio lesson

Language

Narrator

Narration speed

Step 1 / 100%

Embedded recordable audio ready. No microphone is used.

Narration plays as boosted tab audio, so an external tab or screen recording can capture it. No built-in recorder is included.

What to watch

Teacher transcript

Chapters

Learning objectives

Identify the whole, denominator and numerator.
Connect fraction circles, bars, number lines, decimals and percentages.
Generate and justify equivalent fractions.
Compare and add fractions using equal-sized units.
Interpret a fraction as fair sharing and division.

Key formulas

Fraction value = numerator ÷ denominator

Equivalent fraction: a / b = (a × k) / (b × k)

Same denominator: a / b + c / b = (a + c) / b

Fraction of a quantity = fraction × total quantity

Suggested experiments

Keep one half shaded while changing 2, 4, 6, 8 and 10 equal parts.
Compare 3 / 5 with 4 / 7 on one number line.
Add 1 / 2 and 1 / 4 after converting halves to fourths.
Share 3 wholes equally among 4 learners.

Questions for exploration

Why does a larger denominator create smaller pieces?
Can two fractions have different numbers but the same value?
Why must added fraction units be the same size?

Common misconceptions

A larger denominator does not automatically mean a larger fraction.
Adding denominators changes the unit and is usually incorrect.
Fraction parts must be equal and refer to the same whole.

Real-world applications

Recipes, time, money, measurements, map scales, probability, music and fair sharing all depend on fractions.

Fraction quiz

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Choose an answer for instant feedback.

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