Multiplying & Dividing 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 multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. For example, (a/b) * (c/d) = (a*c)/(b*d).

Tags

CCSS.5.NF.B.6

Front

What does it mean to divide by a fraction?

Back

Dividing by a fraction is the same as multiplying by its reciprocal. For example, dividing by (a/b) is the same as multiplying by (b/a).

Front

What is the reciprocal of a fraction?

Back

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

Front

How do you simplify a fraction?

Back

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

Front

What is the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the result of 1/3 divided by 13?

Back

1/39

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What is the area of a rectangle with length ⅗ yard and width ⅓ yard?

Back

3/15 or 1/5 after simplification.

Tags

CCSS.5.NF.B.4B

Front

How do you express sharing 6 bottles of water among 9 siblings?

Back

6/9 or 2/3 after simplification.

Tags

CCSS.5.NF.B.3

Front

What is 1/5 divided by 8?

Back

1/40

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C