**Least Common Denominator (LCD)**: The smallest denominator
possible for two or more fractions which we want to write in equivalent forms, all with the same denominator.

**Least common multiple (LCM)**: The smallest number that can be exactly divided by all the given numbers.

**Less than (<):** It is given by this symbol “<”, and
denotes one quantity is smaller than another.

**Less than or equal to:**
Represented by this symbol “≤”, and denotes one quantity is equal to or
smaller to another.

**Like Terms:** Terms that have exactly the same variables
raised to exactly the same powers.

**Line:** A *line *is
the path formed by a moving point.

**Line Graph:** A graph
that connects the points that represent the quantities in two different scales
with a line.

**Linear Equation:** An equation whose graph forms a straight
line.

**Lowest Terms (Simplest Form):** When a fraction is written with the smallest
possible numbers for both its numerator and denominator.