Multiply and Divide 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

What does it mean to multiply fractions?

Back

Multiplying fractions involves multiplying 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 fractions?

Back

Dividing fractions means multiplying by the reciprocal of the second fraction. For example, (a/b) ÷ (c/d) = (a/b) × (d/c).

Tags

CCSS.6.NS.A.1

Front

What is a reciprocal?

Back

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

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you subtract fractions with different denominators?

Back

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in multiplying fractions?

Back

The first step in multiplying fractions is to multiply the numerators together.

Tags

CCSS.5.NF.B.6

Front

What is the first step in dividing fractions?

Back

The first step in dividing fractions is to find the reciprocal of the second fraction.

Tags

CCSS.6.NS.A.1

Front

What is the result of 4/5 × 10/12?

Back

The result is 2/3.

Tags

CCSS.5.NF.B.6

Front

What is the result of 4 ÷ 1/4?

Back

The result is 16.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C