Operations on 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 (the number of parts) and 'b' is the denominator (the total number of equal parts).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add fractions?

Back

Adding fractions involves finding a common denominator and then adding the numerators. The result is a new fraction that represents the total.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you find a common denominator?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators of the fractions you want to add or subtract.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 2/3 + 3/4?

Back

17/12

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 1 3/4.

Tags

CCSS.3.NF.A.3C

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. Simplify if necessary.

Tags

CCSS.5.NF.B.6

Front

What is the product of 3/5 x 2/3?

Back

2/5

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, a/b ÷ c/d = a/b x d/c.

Tags

CCSS.6.NS.A.1

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator. For example, the reciprocal of 3/4 is 4/3.

Front

If John bought 5 1/4 bags of soil and divided it into 3 pots, how much soil is in each pot?

Back

1 3/4 bags.