Operations with Fractions

Adding Fractions

100

What is the number on the top of a fraction called?

The Numerator

200

1/2 + 1/4 =

3/4

300

1/4 + 1/4 =

2/4 or 1/2

400

Daily Double!!!!!!!!!!!!

In order to add fractions, the Denominators need to be the ________ number.

Same

500

2/3 + 3/5 =

19/15

Subtracting Fractions

100

Daily Double!!!!!!!!!!!!

What is the number on the bottom of the fraction called?

The Denominator

200

1/2 - 1/4=

1/4

300

Bonus 300!!!!!!!!!!!!!!!!!

Bonus 300!!!!!!!!!!!!!!!!!

400

3/4 - 1/4 =

2/4 or 1/2

500

4/5 - 3/5 =

1/5

Multiplying Fractions

100

1/2 x 2/5 =

2/10

200

1/5 x 3/4 =

3/20

300

3/4 x 1/4 =

3/16

400

1/2 x 1/4 =

1/8

500

4/6 x 1/3 =

4/18 or 2/9

Dividing Fractions

100

To Divide Fractions: You must           

k _ _ p the first number the same.

Keep

200

Daily Double!!!!!!!!!!!!

To Divide Fractions: You must c _ _ n _ e  the division sign.

Change

300

To Divide Fractions: You must f _ _ p the last number.

400

To Divide Fractions: You must change the division sign to a _____________ sign.

Multiplication

500

1/2 ÷ 2/5 =

5/4

Miscellaneous

100

1/5 ÷ 3/4 =

4/15

200

Daily Double!!!!!!!!!!!!!!!

1/4 ÷ 1/2   

2/4

300

How many packages of sweets, each containing 1/4 of kilogram , can be filled from 52 kilogram?

208

400

Bonus 400!!!!!!!!!!!!!!

Bonus 400!!!!!!!!!!!!!!

500

How many operations (signs) are there in math? name them.

4, Addition, Subtraction, Multiplication, Division