Fractions- All Operations

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

What does it mean to add fractions with the same denominator?

Back

When adding fractions with the same denominator, you add the numerators and keep the denominator the same. For example, 3/7 + 2/7 = (3+2)/7 = 5/7.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with different denominators?

Back

To subtract fractions with different denominators, first find a common denominator, convert the fractions, then subtract the numerators.

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 fraction, such as 2 1/2.

Tags

CCSS.3.NF.A.3C

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 9/4.

Tags

CCSS.3.NF.A.3C

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. For example, (2/3) * (3/4) = (2*3)/(3*4) = 6/12 = 1/2.

Tags

CCSS.5.NF.B.6

Front

How do you divide fractions?

Back

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

Tags

CCSS.6.NS.A.1

Front

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

Back

To add 1/2 + 1/3, find a common denominator (6): (3/6) + (2/6) = 5/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

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

Back

Convert to improper fractions: 1 1/4 = 5/4 and 3 1/2 = 7/2. Then find a common denominator and subtract: 5/4 - 14/4 = -9/4 = -2 1/4.

Tags

CCSS.7.NS.A.1C

Front

How do you find a fraction of a whole?

Back

To find a fraction of a whole, multiply the whole by the fraction. For example, to find 1/3 of 12, calculate 12 * (1/3) = 4.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C