Subtracting Mixed Number Fractions with Unlike Denominators

Solve and simplify to lowest terms.

• a

• b

• c

• d

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

• common numerator

• common denominator

• equivalent fraction

• mixed number

What must you do first in order to add or subtract fractions with unlike denominators?

• add the numerators

• add the denominators

• find a common denominator

• find a common numerator

When adding and subtracting fractions, which value needs to be the same in all values being added/subtracted?

• Numerator

• Denominator

⁴/₅ - ¹/₁₀

• ³/₅

• ⁷/₁₀

• ²/₂₅

• ¹/₃

What is the process of making two fractions with unlike denominators able to be added or subtracted called?

• Finding the least common multiple or least common denominator

• Addition

• Multiplication

• Reverse multiplication

When adding or subtracting fractions with unlike denominators, what is the first step?

• Add the numerators

• Add the denominators

• Find a common denominator

What is the best common denominator for this problem?

• 5

• 2

• 20

• 10

Solve.

• 1 5/8

• 1/8

• 1/4

• 1 1/4