multiplying and 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.2B

CCSS.3.NF.A.1

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 multiplying 2/3 x 3/4?

Back

The result is 1/2.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4A

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 1/4?

Back

The reciprocal of 1/4 is 4/1 or simply 4.

Front

What is 1/2 ÷ 1/4?

Back

The result is 2.

Tags

CCSS.6.NS.A.1

Front

What does it mean to simplify a fraction?

Back

Simplifying a fraction means reducing it to its lowest terms by dividing the numerator and denominator by their greatest common factor.

Front

What is the greatest common factor (GCF) of 8 and 12?

Back

The GCF of 8 and 12 is 4.

Front

What is 3/5 x 5/6?

Back

The result is 1/2.

Tags

CCSS.5.NF.B.6

Front

What is 2 ÷ 1/2?

Back

The result is 4.

Tags

CCSS.5.NF.B.7C

CCSS.5.NF.B.7B