Adding Fractions

2/3 + 1/6 =

• 3/9

• 3/6

• 5/6

• 1/3

3/8 + 1/4 =

• 5/8

• 4/12

• 7/8

• 4/8

1/2 + 2/5 =

• 3/7

• 7/5

• 7/10

• 9/10

1/2 + 2/5 =

• 3/7

• 7/5

• 7/10

• 9/10

3/10 + 2/5 =

• 5/10

• 5/15

• 1/3

• 7/10

4/5 + 1/10 =

• 9/10

• 5/15

• 3/10

• 5/5

2/5 + 1/4 =

• 16/20

• 13/20

• 3/9

• 8/10

1/3 + 1/4 =

• 7/12

• 1/2

• 2/7

• 2/6

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30
• 11
• 6
• 5

Which of these numbers could NOT be a common denominator for these two fractions?
1/6   and   1/4

• 12
• 18
• 24
• 36