Write Fractions and Equivalent Fractions

Mrs. YoungEMC 1

How to write fractions

• Rewrite using a fraction bar5 ÷ 7

Step 1: The first number goes above the fraction bar

5

Step 2:

5 ÷ 7• The second number goes below

the fraction bar

5

7

Rewrite 4 ÷ 7 using a fraction bar

The first number goes above the fraction bar and the second number goes below the fraction bar: 4

7

Rewrite 15 ÷ 8 using a fraction bar

• The first number goes above the fraction bar and the second number goes below the fraction bar:

15

8

Rewrite using a fraction bar

1) 14 ÷ 172) 19 ÷ 163) 7 ÷ 104) 9 ÷ 15

Rewrite using the ÷ symbol

The number on top goes before the ÷ symbol and the number on the bottom goes after the ÷ symbol

15 ÷ 17

15

17

Rewrite using the ÷ symbol

The number on top goes before the ÷ symbol and the number on the bottom goes after the ÷ symbol.

13 ÷ 3

13

3

Rewrite each using the ÷ symbol

1)

2)

3)

7

18

16

25

3

19

Equivalent Fractions

• Equivalent – equal or the same• Definition: two fraction that name

the same amount are called equivalent fractions.

Find an equivalent fraction for

• First, let’s name the two numbers:

2

3

2

3

numerator

denominator

Step 1:

Follow the equivalent fraction rule:**If the numerator and denominator of a

fraction are each multiplied by the same counting number, then the new fraction represents the same number.

Step 1 continued

2

3

Multiply the numerator and denominator by 2

=2 2

3 2

x

x=

4

6

2

3

4

6So, and are

equivalent fractions because we multiplied the numerator and the denominator by the same number.

More equivalent fractions

has many more fractions that are

equivalent. All that we need to do is multiply the numerator and the denominator by the same counting number.

2

3

2

3

2 3

3 3

x

x

6

9= =

Find an equivalent fraction for

• Multiply the numerator and the denominator by the same counting number.

7

9

7

97 2

9 2

x

x

14

18= =

Find another equivalent fraction for

7

9