Halves & quarters

Japanese school year: Elementary 2

What you learn

You will explore the basic meaning of fractions by dividing an entire object into equal parts such as halves and fourths. This concept helps when folding paper or sharing snacks equally among friends. Understanding how to divide quantities into equal groups is great preparation.

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Key points

This equation shows what one half ( $\frac{1}{2}$ ) means. Dividing one whole ( $1$ ) into two equal parts gives $\frac{1}{2}$ , and two of these halves combine to make the original $1$ .

\frac{1}{2} + \frac{1}{2} = 1

This equation shows what one fourth ( $\frac{1}{4}$ ) means. Dividing one whole ( $1$ ) into four equal parts gives $\frac{1}{4}$ , and four of them together equal the original $1$ .

4 \times \frac{1}{4} = 1

This is the fundamental rule for using fractions. Fractions can only be used when a whole is divided into parts of equal size.

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Practice 1Coming soon