Addition and subtraction of fractions part 1

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 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 one fraction away from another. Like addition, fractions must have a common denominator.

Front

How do you find a common denominator?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators of the fractions you are working with.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) is the smallest number that is a multiple of two or more numbers.

Front

What is the first step in adding or subtracting fractions?

Back

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

Front

Calculate: 5/6 - 1/3

Back

1/2

Front

Calculate: 3/8 - 1/3

Back

1/24

Front

Calculate: 3/8 + 1/6

Back

13/24

Front

Calculate: 1/2 - 1/5

Back

3/10