Rational Expressions Like Denominators

Front

To add or subtract rational expressions we must have a _____________?

Back

common denominator

Front

Simplify the expression: (2a + 4b) / 12b²

Back

(a + 2b) / 6b²

Front

Simplify the expression: 6x / 20xy

Back

3 / 10y

Front

What is a rational expression?

Back

A fraction where the numerator and the denominator are polynomials.

Front

What is a common denominator?

Back

A common multiple of the denominators of two or more fractions.

Front

How do you find the least common denominator (LCD)?

Back

By determining the least common multiple (LCM) of the denominators.

Front

What is the first step in adding rational expressions?

Back

Find a common denominator.

Front

What does it mean to simplify a rational expression?

Back

To reduce it to its simplest form by canceling common factors.

Front

What is the greatest common factor (GCF)?

Back

The largest factor that divides two or more numbers.

Front

How do you simplify (x² - 1) / (x² - 2x + 1)?

Back

(x + 1) / (x - 1) after factoring.