PFF - Fraction Operations

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 a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator. For example, 2 1/2 = (2*2 + 1)/2 = 5/2.

Front

What is the process for adding mixed numbers?

Back

Convert mixed numbers to improper fractions, find a common denominator, add the fractions, and convert back to a mixed number if necessary.

Tags

CCSS.7.NS.A.1C

Front

What is the formula for dividing fractions?

Back

To divide fractions, multiply by the reciprocal of the divisor. For example, a/b ÷ c/d = a/b * d/c.

Tags

CCSS.6.NS.A.1

Front

How do you multiply mixed numbers?

Back

Convert mixed numbers to improper fractions, multiply the fractions, and convert back to a mixed number if necessary.

Tags

CCSS.5.NF.B.6

Front

What is a proper fraction?

Back

A proper fraction is a fraction where the numerator is less than the denominator, such as 3/4.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator, such as 5/4.

Tags

CCSS.3.NF.A.3C

Front

How do you simplify a fraction?

Back

Divide the numerator and the denominator by their greatest common divisor (GCD). For example, 8/12 simplifies to 2/3.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share. It is used to add or subtract fractions.

Front

What is the first step in subtracting fractions?

Back

Find a common denominator for the fractions being subtracted.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2