Adding, Subtracting, Multiplying, & Dividing Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators. Example: 1/5 + 2/5 = (1+2)/5 = 3/5.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

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. Example: 1/4 + 1/2 = 1/4 + 2/4 = 3/4.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to subtract fractions?

Back

To subtract fractions, if they have the same denominator, subtract the numerators and keep the denominator. If they have different denominators, find a common denominator first.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What does it mean to simplify a fraction?

Back

Simplifying a fraction means reducing it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

What is an equivalent fraction?

Back

Equivalent fractions are different fractions that represent the same value. Example: 1/2 is equivalent to 2/4.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. Example: (1/2) * (3/4) = (1*3)/(2*4) = 3/8.

Tags

CCSS.5.NF.B.6

Front

How do you divide fractions?

Back

To divide fractions, multiply by the reciprocal of the second fraction. Example: (1/2) ÷ (3/4) = (1/2) * (4/3) = 4/6 = 2/3.

Tags

CCSS.6.NS.A.1

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest number that can be a common denominator for two or more fractions.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction. Example: 2 1/2 is a mixed number.

Tags

CCSS.3.NF.A.3C