Adding Subtracting Multiplying Fractions Same Denominator

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

What is the sum of these fractions in lowest terms?

• 5/12

• 5/24

• 6/12

• 6/144

What is the sum of these fractions in lowest terms?

• 7/18

• 7/9

• 12/9

• 12/81

What is 3/4 + 1/4 = ?

Mathematical Equivalence

ON

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

LCM is helpful when (2 answers)

• reducing a fraction to its simplest form

• finding a common denominator to compare fractions

• finding a common denominator to add/subtract fractions

• reducing a mixed fraction to improper

When adding fractions

• do the same process as subtracting

• all fractions must be made into mixed

• you don't need common denominators

• do the same process as multiplying