Adding and Subtracting Mix

Find Lowest Common Denominator & solve
8    6/9    -    3    2/5  =

• 6

• 4

• 5   12/45

• 5   4/60

When the denominators are not the same, I must find a...

• common numerator

• common denominator

• equivalent fraction

• mixed number

Once I have completed adding or subtracting fractions, I should always ____________ if possible.

• make equivalent fractions

• add again

• simplify

• multiply

There were 3 1/6 pies on the shelf. The server took away 1 5/6 pies from the shelf. How many pies remain on the shelf?

• 3 1/6 pies

• 2 1/6 pies

• 1 1/3 pies

• 2 pies

7 3/5 - 2 1/4

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

• ¹/₈ yard

• ³/₄ yard

• ⁷/₈ yard

• 1 ⁷/₈ yards

Add ¼ and 1/3. Use 12 as the common denominator.

• 1/4

• 1/3

• 1/12

• 7/12

April has 2/3 cup sugar and Mike has  1 3/6 cups of sugar. How much do they have together? 

• 13/6 or  2 1/6

• 2 whole

• 2 1/2 

• 3 whole

8  2/4 - 3  2/3=

Simplify if needed.

• 5  2/12

• 4  5/6

• 11  1/6

• 8  2/3

Subtract 1/3 from ½. Use 6 as the common denominator.

• 1/2

• 1/3

• 1/6

• 1/12