Adding and Subtracting fractions and mixed numbers

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).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/4.

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1

Front

How do you add fractions with the same denominator?

Back

Add the numerators and keep the denominator the same. For example, 1/4 + 2/4 = 3/4.

Tags

CCSS.4.NF.B.3D

CCSS.4.NF.B.3C

Front

How do you add fractions with different denominators?

Back

Find a common denominator, convert the fractions, then add the numerators. For example, 1/2 + 1/3 = 3/6 + 2/6 = 5/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in subtracting fractions?

Back

Ensure the fractions have the same denominator. If not, find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you subtract fractions with the same denominator?

Back

Subtract the numerators and keep the denominator the same. For example, 3/5 - 1/5 = 2/5.

Tags

CCSS.4.NF.B.3D

CCSS.4.NF.B.3C

Front

What is the process for subtracting mixed numbers?

Back

Convert mixed numbers to improper fractions, find a common denominator, and then subtract.

Tags

CCSS.7.NS.A.1C

Front

What is the numerator in a fraction?

Back

The numerator is the top number of a fraction that indicates how many parts are being considered.

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1

Front

What is the denominator in a fraction?

Back

The denominator is the bottom number of a fraction that indicates how many equal parts the whole is divided into.

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1

Front

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

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator.