Adding and Subtracting Fractions

Front

What is the process for adding 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 common denominator, then add the numerators and keep the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you subtract fractions with different denominators?

Back

To subtract fractions with different denominators, find a common denominator, convert each fraction to an equivalent fraction with that common denominator, then subtract the numerators and keep the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, such as 2 1/3.

Tags

CCSS.3.NF.A.3C

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.

Front

What is the least common denominator (LCD)?

Back

The least common denominator (LCD) is the smallest multiple that two or more denominators share.

Front

What is the first step in adding or subtracting mixed numbers?

Back

The first step is to convert the mixed numbers to improper fractions.

Tags

CCSS.7.NS.A.1C

Front

How do you simplify a fraction?

Back

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

Front

What is the greatest common divisor (GCD)?

Back

The greatest common divisor (GCD) is the largest number that divides both the numerator and the denominator without leaving a remainder.

Front

What is the result of adding two fractions with the same denominator?

Back

When adding two fractions with the same denominator, you simply add the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of subtracting two fractions with the same denominator?

Back

When subtracting two fractions with the same denominator, you subtract the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D