Fractions XIIIMultiplication of Whole

Numbers

How to Find the Fraction of a Whole Number

The first thing to remember is “of” means multiply in mathematics.

of = x

How to Find the Fraction of a Whole Number

Step 1 - When you see a fraction problem you know when you read “of” in the problem you multiply.

of 46x12

How to Find the Fraction of a Whole Number

Step 2 – Change your whole number to a fraction by adding a one underneath.

x 461

12

How to Find the Fraction of a Whole Number

Step 3 – Multiply your numerators straight across.

x 461

12 = 46

How to Find the Fraction of a Whole Number

Step 4 – Then multiply your denominators straight across.

x 461

12 = 46

2

How to Find the Fraction of a Whole Number

Step 5 – Simplify your answer. In this case we change an improper fraction to a mixed number or a whole number.

x 461

12 = 46

2 2)4623

Multiply and Simplify

361

13 = 36

3 3)3612ofx

Multiply and Simplify

181

16 = 18

6 6)183ofx

Multiply and Simplify

91

38 = 27

8 8)273ofx

243

38

Multiply and Simplify

61

78 = 42

8 8)425ofx

402

28

5 28

÷ 22

= 5 14÷

Multiply and Simplify

121

18 = 12

8 8)121ofx84

48

1 48

÷ 44

= 1 12÷

You’re reallygetting this!

Credits

Clipart from “Microsoft Clip Gallery” located on the Internet at http://cgl.microsoft.com/clipgallerylive/default.asp