Adding and Subtracting Fractions and Mixed Numbers Review Flashcard

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). For example, in the fraction 1/2, 1 is the numerator and 2 is the denominator.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then add the numerators.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction. For example, 2 1/2 is a mixed number, where 2 is the whole number and 1/2 is the fraction.

Front

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

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that sum over the original denominator. For example, 2 1/2 = (2*2 + 1)/2 = 5/2.

Front

What is the first step in subtracting fractions?

Back

The first step in subtracting fractions is to ensure that the fractions have a common denominator. If they do not, find the least common denominator.

Front

Back

Front

How do you subtract mixed numbers?

Back

To subtract mixed numbers, first convert them to improper fractions, then subtract the fractions, and finally convert back to a mixed number if necessary.

Front

Back

Front

How do you add mixed numbers?

Back

To add mixed numbers, first convert them to improper fractions, add the fractions, and then convert back to a mixed number if necessary.

Front

What is the result of adding 2 1/2 and 1 3/4?

Back

5 1/4.