Understanding Fractions and Geometry

A fraction represents a part of a whole. It is written as two numbers separated by a slash, like $$\frac{1}{2}$$ , where the top number is the numerator (part) and the bottom number is the denominator (whole).

Rounding a number means adjusting it to the nearest specified value, such as the nearest ten or hundred, to make it simpler to work with.

200.

$$\frac{1}{3}$$ is less than $$\frac{2}{3}$$ .

Perpendicular lines are lines that intersect at a right angle (90 degrees).

The sides of a square meeting at a corner are an example of perpendicular lines.

490.

1000.

The numerator is the top number in a fraction that indicates how many parts we have.

The denominator is the bottom number in a fraction that indicates how many equal parts the whole is divided into.