Multiplying Fractions Review

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 (the number of parts) and 'b' is the denominator (the total number of equal parts).

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 1/2 of 10?

Back

1/2 of 10 is 5.

Tags

CCSS.4.NF.B.4C

CCSS.4.NF.B.4B

Front

If you have 6 donuts and give away 2/3, how many do you give away?

Back

You give away 4 donuts.

Tags

CCSS.4.NF.B.4C

CCSS.4.NF.B.4B

Front

What is 3 1/2 x 3/4?

Back

3 1/2 x 3/4 = 2 5/8.

Tags

CCSS.5.NF.B.6

Front

What does 'of' mean in math when dealing with fractions?

Back

'Of' usually means to multiply. For example, '1/2 of 8' means 1/2 x 8.

Tags

CCSS.5.NF.B.3

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator. For example, 2 1/3 = (2*3 + 1)/3 = 7/3.

Front

What is the result of multiplying a fraction by a whole number?

Back

To multiply a fraction by a whole number, convert the whole number to a fraction (by putting it over 1) and then multiply. For example, 3 x 1/2 = 3/1 x 1/2 = 3/2.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

If Ben practices 4 1/4 hours and Jake practices half as much, how do you find Jake's practice time?

Back

You can find Jake's practice time by multiplying Ben's practice time by 1/2: t = 4 1/4 x 1/2 = 2 1/8 hours.

Tags

CCSS.7.EE.B.3

Front

What is the total length of 5 dimes if each dime is 1/2 inch wide?

Back

The total length is 5 x 1/2 = 5/2 = 2 1/2 inches.

Tags

CCSS.7.NS.A.3