Add/Subtract Fractions (Unlike)

Front

What is the least common denominator (LCD) of two fractions?

Back

The least common denominator (LCD) is the smallest multiple that is common to the denominators of two or more fractions.

Front

How do you find the least common denominator of 1/9 and 2/3?

Back

The least common denominator of 1/9 and 2/3 is 9.

Front

What is the difference of 1/3 and 5/12 in lowest terms?

Back

The difference of 1/3 and 5/12 in lowest terms is 1/20.

Front

What is the number on the bottom of a fraction called?

Back

The number on the bottom of a fraction is called the denominator.

Front

What is the sum of 1/3 and 5/12?

Back

The sum of 1/3 and 5/12 is 3/4.

Front

What is the result of 6/7 - 2/3?

Back

The result of 6/7 - 2/3 is 4/21.

Front

What is a fraction with different denominators called?

Back

A fraction with different denominators is called an unlike fraction.

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, find the least common denominator, convert the fractions, and then add the numerators.

Front

What is the first step in subtracting fractions with unlike denominators?

Back

The first step in subtracting fractions with unlike denominators is to find the least common denominator.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms by dividing the numerator and denominator by their greatest common factor.