Adding and Subtracting 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 (the number of parts) and 'b' is the denominator (the total number of equal parts).

Front

What does it mean to add fractions?

Back

Adding fractions involves combining the parts represented by the fractions. If the denominators are the same, add the numerators and keep the denominator. If they are different, find a common denominator first.

Front

What does it mean to subtract fractions?

Back

Subtracting fractions involves taking away parts represented by one fraction from another. If the denominators are the same, subtract the numerators and keep the denominator. If they are different, find a common denominator first.

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 adding or subtracting.

Front

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

Back

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

Front

What is the simplified form of 4/8?

Back

1/2. To simplify, divide both the numerator and denominator by their greatest common divisor (GCD), which is 4.

Front

What is the result of 1/4 + 1/4?

Back

1/2. When adding fractions with the same denominator, add the numerators.

Front

What is the result of 3/5 - 1/5?

Back

2/5. When subtracting fractions with the same denominator, subtract the numerators.

Front

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

Back

Multiply the whole number by the denominator and add the numerator. Place this result over the original denominator.

Front

What is 2 1/2 as an improper fraction?

Back

5/2. (2 * 2) + 1 = 5, so 2 1/2 = 5/2.