adding and subtracting Fractions

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

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators.

Front

How do you subtract fractions with the same denominator?

Back

To subtract fractions with the same denominator, keep the denominator the same and subtract the numerators.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share.

Front

How do you find the least common denominator for 3/4 and 2/5?

Back

The least common denominator for 3/4 and 2/5 is 20.

Front

What is the process for adding fractions with different denominators?

Back

1. Find the least common denominator. 2. Convert each fraction to an equivalent fraction with the LCD. 3. Add the numerators and keep the LCD as the denominator.

Front

What is the process for subtracting fractions with different denominators?

Back

1. Find the least common denominator. 2. Convert each fraction to an equivalent fraction with the LCD. 3. Subtract the numerators and keep the LCD as the denominator.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

Front

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

Back

To convert an improper fraction to a mixed number, divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction.