Show:
Adding Fractions
Subtracting Fractions
Multiplying Fractions
Dividing Fractions
Mystery
100

True or False? When adding fractions, we need to have common denominators.

True!

The denominators must be the same before we can add.

100

True or false? When subtracting fractions, we must have common denominators.

True!

The denominators must be the same before we can subtract.

100

True or false? When multiplying fractions, we must have common denominators.

False!

It does not matter if the denominators are the same. We can multiply anyway.

100

True or False? When dividing fractions, we must have common denominators.

False!

It does not matter if the denominators are the same. We can divide anyway.

100

In the fraction 6/7, which number is the NUMERATOR?

a. 6

b. 7

a. 6

200

1/3 + 1/3 = 

2/3

200

7/8 - 2/8 =

5/8

200

1/6 x 1/2 =

1/12

-----------

1x1 = 1

6x2 = 12

200

How can we re-write 1/9 ÷ 4/9 as a MULTIPLICATION problem?

a. 1/9 x 4/9

b. 1/9 x 9/4

c. 9/1 x 4/9

b. 1/9 x 9/4


(multiply by the RECIPROCAL of the second fraction)

200

5/67 - 5/67 =

0

300

1/5 + 1/10 =

3/10

---------------------------

1/5 = 2/10

2/10 + 1/10 = 3/10

300

5/6 - 1/6 =

2/3

-----------------------------

5/6 - 1/6 = 4/6

4/6 = 2/3

300

2/9 x 1/3 = 

1/9

-----------------------------

2/9 x 1/3 = 2/18

2/18 = 1/9

300

1/6 ÷  2/3 =

1/4

-------------------------

1/6 x  = 3/12

3/12 = 1/4

300

3/3 + 4/4 =

2

----------------------------------------

3/3 = 1

4/4 = 1

1 + 1 = 2

400

1/2 + 2/8 =

3/4

------------------------

1/2 = 4/8

4/8 + 2/8 = 6/8

6/8 = 3/4

400

2/7 - 1/14 =

3/14

-----------------------------------

2/7 = 4/14

4/14 - 1/14 = 3/14

400

7/8 x 1/2 =

7/16

400

1/10 ÷ 3/10 =

1/3

----------------------------

1/10 x 10/3 =10/30

10/30 = 1/3

400

Simplify the following the fraction 6/24

1/4


----------

(divide the top and the bottom by 4)

500

1/3 + 2/9 + 1/6 = 

13/18

--------------------------------------

1/3 = 6/18

2/9 = 4/18

1/6 = 3/18

6/18 + 4/18 + 3/18 =13/18

500

3/10 - 3/5 =

-3/10

----------------------------

3/5 = 6/10

3/10 - 6/10 = -3/10

500

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

1/10

----------------------------------

1 x 2 x 3 = 6

4 x 3 x 5 = 60

6/60 = 1/10

500

7/9 ÷ 8/9 =

7/8

-----------------------

7/9 x 9/8 = 63/72 

63/72 = 7/8

500

You get 500 points for free because you were brave :)

yay