Adding and Subtracting 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 first step in subtracting fractions?

Back

The first step in subtracting fractions is to find a common denominator.

Tags

CCSS.7.NS.A.1C

Front

What is a mixed number?

Back

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

Front

What is the least common multiple (LCM)?

Back

The least common multiple is the smallest number that is a multiple of two or more numbers.

Front

What is the greatest common divisor (GCD)?

Back

The greatest common divisor is the largest number that divides two or more numbers without leaving a remainder.

Front

What is the result of 2/3 + 1/6?

Back

The result is 5/6.

Tags

CCSS.7.NS.A.1C

Front

What is the result of 3/4 - 1/2?

Back

The result is 1/4.

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 divisor.