Fractions

Least Common Denominators

100

Find the least common denominator:

3/4   and 2/3

What is 12

200

Find the least common denominator:

2/5   and   4/10

What is 10

300

Find the least common denominator:

1/8     and        1/6

What is

24

400

Find the least common denominator:

4/9   and    5/6

What is

18

500

Find the least common denominator:

3/9    and  4/27

What is

27

Converting Mixed Numbers to Improper Fractions

100

Convert the mixed number to an improper fraction:

4  1/4

What is

17/4

200

Convert the mixed number to an improper fraction:

7  4/6

What is

46/6

300

Convert the mixed number to an improper fraction:

12  5/8

What is

101/8

400

Convert the mixed number to an improper fraction:

10  9/10

What is 

109/10

500

Convert the mixed number to an improper fraction:

7  9/5

What is

44/5

Converting Improper Fractions to mixed numbers

100

Convert the improper fraction to a mixed number:

14/3

What is

4   2/3

200

Convert the improper fraction to a mixed number:

48/6

What is

8

300

Convert the improper fraction to a mixed number:

98/12

What is

8  2/12  or 8  1/6

400

Convert the improper fraction to a mixed number:

15/4

What is

3  3/4

500

Convert the improper fraction to a mixed number:

57/9

What is

6  3/9 or 6  1/3

Adding Mixed Numbers

100

Add

2  3/4  +  1  1/4=

What is

4

200

Add

5  6/8  + 3  3/4=

What is

9  4/8 or  9  1/2

300

Add

4  2/3  +  4  3/12=

What is

8  11/12

400

Add

7  2/6 +  3 2/9=

What is

10  10/18  or 10  5/9

500

Add

10/8 +  14/4=

What is

4  6/8  or  4 3/4

Subtracting Mixed Numbers

100

Subtract

4  6/8 - 3  2/8=

What is

1 4/8  or 1  1/2

200

Subtract

7  2/3  -  4  2/6=

What is

3  2/6 or  3  1/3

300

Subtract

6  1/9  - 2  2/3=

What is

3  4/9

400

Subtract

4  3/8-  3  3/4=

What is

5/8

500

Subtract

9  5/4  - 2  3/8=

What is 

7   7/8