add and subtract fractions and mixed numbers

What number could be a common denominator for these three fractions?
1/2   and   1/3   and   1/4

• 9
• 8
• 12
• 6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

6/7 - 2/3 =

• 32/21
• 4/21
• 1 3/21
• 7/21

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Tim did 1/12 of a load of laundry on Sunday and 1/4 of a load of laundry on Saturday. What fraction of laundry did Tim do in total?

• 2/16 loads done 
• 1/3 loads done 
• 2/3 loads done 
• 2/12 loads done 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Marty made two types of cookies.  He used 2/3 cups of sugar for one recipe and 1/4 cup of sugar for the other.  How much sugar did he use in all?

• 3/7
• 5/12
• 11/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

7/2= what as a mixed number?

• 3  1/2
• 4  3/2
• 4  1/2
• 2  3/2

Tags

CCSS.5.NF.B.3

21/5= what as a mixed number?

• 5  1/5
• 4  2/5
• 4  1/5
• 5  4/5

Tags

CCSS.5.NF.B.3

Simplify  9/45

• 3/15
• 5
• 4
• 1/5

Tags

CCSS.5.NF.B.3

Convert 27/12 to a mixed number

(Hint: simplify your answer)

• 3 1/4

• 2 1/4

• It already is mixed

• 3 3/12

Tags

CCSS.4.NF.B.3

Marie needs 2 ¹/₄ yards of fabric/ She already has 1 ³/₈ yards. How many more yards of fabric does she need? (SUBTRACT)

• ¹/₈ yard
• ³/₄ yard
• ⁷/₈ yard
• 1 ⁷/₈ yards

Tags

CCSS.7.NS.A.1C

The Jacobys went on a 600 mile trip. On the first day, they drove 5 ²/₃ hours and on the second day they drove 4 ³/₅ hours. How many hours did they drive during the first two days?

• 10 ⁴/₁₅ hours
• 10 hours
• 9 ¹⁹/₃₀ hours
• 9 ^4/₁₅ hours

Tags

CCSS.7.NS.A.1C