Add and Subtract Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Front

What does it mean to add fractions?

Back

Adding fractions involves combining the parts represented by the fractions. To add fractions, they must have a common denominator.

Front

What does it mean to subtract fractions?

Back

Subtracting fractions involves taking away the parts represented by the fractions. To subtract fractions, they must have a common denominator.

Front

What is a common denominator?

Back

A common denominator is a shared 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 1/4 and 5/8?

Back

The least common multiple of 4 and 8 is 8, so the common denominator is 8.

Front

What is 1/4 + 5/8?

Back

1/4 + 5/8 = 7/8.

Front

What is 3/5 + 7/10?

Back

3/5 + 7/10 = 13/10.

Front

What is 7/10 - 1/2?

Back

7/10 - 1/2 = 1/5.

Front

How do you convert 1/4 to have a denominator of 8?

Back

Multiply the numerator and denominator by 2: 1/4 = 2/8.

Front

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

Back

Find a common denominator for the fractions.