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 proper fraction. For example, 2 1/3 is a mixed number, where 2 is the whole number and 1/3 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 1/3 becomes (2*3 + 1)/3 = 7/3.

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

How do you subtract mixed numbers?

Back

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

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Front

What is the sum of 3 2/5 and 2 4/7?

Back

The sum of 3 2/5 and 2 4/7 is 5 34/35.