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# Fractions - PowerPoint PPT Presentation

Fractions. Fractions - equal parts of a whole. Numerator. Parts/pieces you are looking for. =. Denominator. Total number of pieces/parts. 3. Ex). w. 4. Improper Fractions & Mixed Numbers. Improper Fractions - numerator larger than denominator. Ex). 5. 1. w. w. w. 4. 4.

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## PowerPoint Slideshow about ' Fractions' - benito

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### Fractions

Fractions- equal parts of a whole

Numerator

Parts/pieces you are looking for

=

Denominator

Total number of pieces/parts

3

Ex)

w

4

Improper Fractions &Mixed Numbers

Improper Fractions- numerator larger than denominator

Ex)

5

1

w

w

w

4

4

Mixed numbers- whole number and a fraction

1

3

3

Ex)

Number of pieces left over

1

4

2

Total number of completely colored shapes

Multiply the whole number by the denominator

Keep the denominator the same

Write the total as the new numerator

1

4

3

+

Ex)

3 x 4 + 1 = 13

4

x

2

+

1.)

2 x 7 + 5 = 19

7

x

3

5

2

2.)

4

+

8

3

7

4 x 3 + 2 = 14

3

x

3.)

5

+

5 x 8 + 3 = 43

8

x

Changing Improper Fractionsto Mixed Numbers

Divide the numerator by the denominator

The answer is the whole number

The remainder is the numerator

Keep the denominator the same

1

5

3

16

-15

1

3

16

5

Whole #

Ex)

numerator

5

4 21

-20

1

5

21

4

1.)

3

18

5

3

18

-15

3

2.)

1

3

1

9

4

5

55

9

6

9 55

-54

1

3.)

6

• What you do to the numerator you do the denominator and vice versa

Fractions that are equal

*think multiplication*

What times 7 = 21

1 = 2

5 10

Ex)

2 =

7 21

6

x 3

x 3

4 =

9 36

4 =

9 36

16

1.)

X 4

X 4

15 =

35 7

15 =

35 7

3

x 5

x 5

2.)

5 = 10

12

5 = 10

12

x 2

x 2

3.)

24

To make fraction the smallest it can go

*reduce, simplify and lowest terms*

Divide by the common factor

8

12

4

6

2

3

Ex)

÷ 2

÷ 2

÷ 2

÷ 2

2

10

÷ 2

÷ 2

= 1

5

Ex)