Adding 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 it mean to have unlike denominators?

Back

Unlike denominators are when the bottom numbers of two or more fractions are different, making it necessary to find a common denominator to add or subtract them.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 1/5 and 5/6?

Back

The least common multiple (LCM) of 5 and 6 is 30, so 30 is a common denominator.

Front

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

Back

The first step is to find a common denominator for the fractions.

Front

Convert the mixed fraction 4 2/3 to an improper fraction.

Back

14/3.

Front

Can you add fractions with unlike denominators directly?

Back

No, you must first convert them to have a common denominator.

Front

What is the improper fraction for 3 1/4?

Back

13/4.

Front

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

Back

3/4 (after finding a common denominator of 4).