Fractions

Adding Fractions

100

Adding unlike fractions:

1/2 + 7/12

13/12

200

Adding unlike fractions:

7/9 + 3/18 =

17/18

300

Adding fractions 

8/10 + 3/5 =

14/10 or 1 2/5

400

Adding unlike fractions

5/15 + 1/5 =

8/15

500

Adding unlike fractions

3/9 + 4/27 =

13/27

Subtracting Fractions

100

Subtract unlike fractions:

5/9 - 1/3 =

2/9

200

Subtract unlike fractions:

9/24 - 3/12 =

3/24 or 1/8

300

Subtract like fractions

17/18 - 12/18 =

5/18

400

Subtract unlike fractions

 3/4 -  1/2

1/4

500

Subtracting unlike fractions

 15/16 - 7/8

1/16

Converting Fractions

100

Convert mixed numbers to fractions

5 3/5

28/5

200

Fractions to mixed numbers:

9/5

1 4/5

300

Add the following:

1 5/6 + 3 3/2

19/3 or 6 1/3

400

Simplify fractions:

15/50

3/10

500

Find common denominators for the following fractions:

2/6 and 1/4

4/12 and 3/12

Fraction Multiplication

100

3/5 x 3 

9/5 or 1 4/5

200

1/4 x 4 =

4

300

3/4 x 5

15/4 or 1 3/4

400

4 x 3/4 =

12/4 or 3

500

3/5 x 2 = 

6/5 or 1 1/6

Other math...

100

-4 x 5

-20

200

If a square has an area of 36 cm², what does the side length have to be?

6 cm

300

If a square has an area of 49 cm², what does the side perimeter have to be?

28 cm

400

5²x3²

225

500

If (3,4,5) is a pythagorean triple, is (12,16,20) also a pythagorean triple? Why? No calculators!!!

Yes! You can always double a pythagorean triple to get the next one.