1. A fraction represents a part of a whole. The denominator tells how many equal parts make up the whole, while the numerator tells how many of those parts are being considered.
2. For example, in the fraction 1/4, the denominator 4 means there are 4 equal parts in the whole, and the numerator 1 means 1 of those parts is being referred to.
3. Fractions can be represented by shapes divided into equal parts, with the numerator indicating how many parts are shaded or counted. Identifying the denominator and numerator allows writing and interpreting different fractions.