Adding and Subtracting Unlike Fractions

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

• 1

• 2/6

• 1/3

• 1/6

• 1/4

3/8 + 2/4 =

• 5/12
• 5/8
• 7/8
• 6/8

#2

• 1 and 1/2 miles
• 5/7 mile
• 1 and 5/12 miles
• 2 and 5/12 miles

Sam used 1/2 of a pint of paint on Thursday and 3/8 of a pint on Sunday. In simplest form, how much paint did Sam use altogether?

• A. 3/10 Pt

• B. 3/4 Pt

• C. 7/8 Pt

• D. 5/8 Pt

#1

• 1/10
• 2/5
• 4/5
• 1 and 3/10

Drew ate 1/3 of a cake for breakfast and 2/5 of the cake for lunch. How much cake did Drew eat?

• 1/15 of a cake

• 10/15 of a cake

• 3/8 of a cake

• 11/15 of a cake