Operations with 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).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to subtract fractions?

Back

To subtract fractions, ensure they have the same denominator, subtract the numerators, and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together.

Tags

CCSS.5.NF.B.6

Front

What is the rule for dividing fractions?

Back

To divide fractions, multiply by the reciprocal of the second fraction.

Tags

CCSS.6.NS.A.1

Front

What is a mixed number?

Back

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

Tags

CCSS.3.NF.A.3C

Front

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

Back

Divide the numerator by the denominator; the quotient is the whole number, and the remainder is the numerator of the proper fraction.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, used to add or subtract them.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common factor (GCF).

Front

What is the weight of an object on the moon if it weighs 12½ pounds on Earth?

Back

2 1/12 pounds (since weight on the moon is 1/6 of its weight on Earth).

Tags

CCSS.7.RP.A.3