Dividing/Multiplying 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 divide a fraction by a whole number?

Back

To divide a fraction by a whole number, multiply the denominator of the fraction by the whole number. For example, 1/2 ÷ 2 = 1/(2*2) = 1/4.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction 'a/b' is 'b/a'. It is used when dividing fractions.

Front

How do you multiply two fractions?

Back

To multiply two fractions, multiply the numerators together and the denominators together. For example, (1/2) * (3/4) = (1*3)/(2*4) = 3/8.

Tags

CCSS.5.NF.B.6

Front

What is the rule for dividing fractions?

Back

To divide fractions, multiply by the reciprocal of the divisor. For example, a/b ÷ c/d = a/b * d/c.

Tags

CCSS.6.NS.A.1

Front

What is 7 divided by 1/3?

Back

21

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

If a serving size is 1/4 cup and there are 3 cups, how many servings are there?

Back

12 servings.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is 1/2 divided by 10?

Back

1/20.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

If Clyde eats 1/6 cup of cat food each day, how many days can he be fed with 5 cups?

Back

30 days.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is 1/9 ÷ 6?

Back

1/54.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C