Adding & Subtracting Fractions with Unlike Denominators

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Front

What does the term 'denominator' mean?

Back

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

Front

What does the term 'numerator' mean?

Back

The numerator is the top number of a fraction that indicates how many parts of the whole are being considered.

Front

What is an unlike denominator?

Back

Unlike denominators are denominators that are different from each other in fractions.

Front

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

Back

The least common denominator (LCD) is the smallest number that can be a common multiple of the denominators of two or more fractions.

Front

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

Back

The first step is to find the least common denominator (LCD) of the fractions.

Front

How do you convert fractions to have a common denominator?

Back

You multiply the numerator and denominator of each fraction by the necessary factor to make the denominators equal.

Front

What is the sum of 1/2 and 2/4?

Back

1/2 + 2/4 = 1.

Front

If Kaci mixed 5/9 gallons of white paint and 1/6 gallons of pink paint, how much paint did she have in total?

Back

5/9 + 1/6 = 13/18 gallons.

Front

How do you subtract fractions with unlike denominators?

Back

First, find the LCD, convert the fractions to have the same denominator, then subtract the numerators.