Add and Subtract Rational Expressions w/ UNLIKE Denominators

Front

What is a rational expression?

Back

A rational expression is a fraction where the numerator and the denominator are both polynomials.

Front

How do you find a common denominator for rational expressions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What is the first step in adding rational expressions with unlike denominators?

Back

The first step is to find a common denominator.

Front

Simplify: 1/2 + 1/3

Back

5/6

Front

What is the formula for adding two fractions?

Back

(a/b) + (c/d) = (ad + bc) / (bd) where b and d are the denominators.

Front

How do you subtract rational expressions?

Back

To subtract rational expressions, find a common denominator, convert each fraction, and then subtract the numerators.

Front

Simplify: 3/4 - 1/2

Back

1/4

Front

What is the result of 5/6 - 1/3?

Back

1/2

Front

What does it mean to simplify a rational expression?

Back

To simplify a rational expression means to reduce it to its lowest terms.

Front

What is the least common multiple (LCM) of 4 and 6?

Back

The LCM of 4 and 6 is 12.