Fractions · Grade 3
In Grade 3 you learn: unit fractions and non-unit fractions; fractions on a number line; comparing and ordering fractions.
A fraction is a part of a whole that has been split into equal parts. The bottom number (the denominator) says how many equal parts there are; the top number (the numerator) says how many of those parts we mean. Fractions are everywhere: half-time, a quarter of an hour, a tank three-quarters full.
Key facts
- The parts must be equal in size.
- Denominator (bottom): how many equal parts. Numerator (top): how many parts we have.
- With the same top number, the bigger the bottom number, the smaller the fraction: 1/8 is less than 1/3.