Multiplying and 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 multiply fractions?

Back

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

Tags

CCSS.5.NF.B.6

Front

What is the result of 3/5 x 2/9?

Back

6/45, which can be simplified to 2/15.

Tags

CCSS.5.NF.B.6

Front

What does it mean for a number to be divisible by 2?

Back

A number is divisible by 2 if it is even, meaning it ends in 0, 2, 4, 6, or 8.

Tags

CCSS.2.OA.C.3

Front

Which of the following is NOT divisible by 2: 450, 35, 1,328, 96?

Back

35 is NOT divisible by 2.

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 result of 4/9 ÷ 1/2?

Back

8/9.

Tags

CCSS.6.NS.A.1

Front

What is the result of 1/4 ÷ 2/5?

Back

5/8.

Tags

CCSS.6.NS.A.1

Front

What is the result of 1/3 ÷ 4?

Back

1/12.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What is a reciprocal?

Back

The reciprocal of a fraction a/b is b/a. For example, the reciprocal of 3/4 is 4/3.