Geometry
GradesGrade 2GeometryHalves, Thirds, and Fourths

Halves, Thirds, and Fourths

🔷 Geometry
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Halves, Thirds, and Fourths

Shapes can be split into 2, 3, or 4 equal parts — each part has a fraction name!

When we split a whole shape into EQUAL parts, we use fraction names. Two equal parts = HALVES (1/2 each). Three equal parts = THIRDS (1/3 each). Four equal parts = FOURTHS or QUARTERS (1/4 each). The more equal parts, the smaller each piece becomes!

The same circle split three ways:

⬤ Whole◐ + ◑ = Halves (1/2)🔵🔵🔵 Thirds (1/3)🟣🟣🟣🟣 Fourths (1/4)

More equal parts = smaller pieces. The whole never changes!

Halves (2 parts)

1/2 + 1/2 = 1 wholeEach half is the largest piece

Thirds (3 parts)

1/3 + 1/3 + 1/3 = 1 wholeEach third is smaller than a half

Fourths (4 parts)

1/4 + 1/4 + 1/4 + 1/4 = 1 wholeEach fourth is the smallest piece

The bigger the denominator (bottom number), the more parts — and the smaller each part!

🥐Sharing a croissant
Share 1 croissant among 3 friends equally.

Cut it into 3 equal parts → THIRDS.
Each friend gets 1/3 of the croissant.

3 × (1/3) = 3/3 = 1 whole croissant! 🥐

How to name an equal part:

1Count the total number of equal parts the whole is split into
2 equal parts → each is called one-half (1/2)
3 equal parts → each is called one-third (1/3)
4 equal parts → each is called one-fourth or one-quarter (1/4)
5All parts MUST be the same size for the fraction name to be correct!
✏️ Try It!

A chocolate bar is broken into 3 equal pieces. What fraction is each piece?

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Remember This!

The BOTTOM number of a fraction tells you how many equal parts the whole was cut into. The TOP number tells you how many of those parts you have.

Practice with CalcVerse
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