Adding Fractions + Adding Fractions w/ Unlike Denominators

• 12/17
• 17/20
• 20/17
• 2  1/2

• 2/5
• 5/6
• 4/6
• 1/5

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

• 22/20

• 11/10

• 1 1/12

• 1 10/11

• 4/9
• 1/4
• 3/12
• 5/9

3/8 + 2/4 =

• 5/12

• 5/8

• 7/8

• 6/8

2/6 + 1/2 =

• 5/6
• 3/6
• 4/6
• 3/8

1/4 + 3/8 =

• 5/8
• 3/8
• 4/12
• 4/8

4/8 + 1/3 =

• 5/11

• 4/8

• 20/24

• 4/11