Adding and Subtracting Negative Fractions Unlike Denominator

In order to add or subtract fractions, both denominators must be:

• the same

• different

• negative

• somebody help me because I just don't know...

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

-1/2 - (-5/9)

• 1/18

• -1/18

• 6/11

• 4/18

Answer explanation

Correct answer 1/18

Tags

CCSS.7.NS.A.1C

solve 

• - 2/9

• - 5/9 

• 2/9

• no there

Tags

CCSS.7.NS.A.1C

⁷/₈ - ¹/₂

• ¹¹/₇

• ⁸/₁₁

• -1 ³/₈

• -1 ¹/₈

Tags

CCSS.7.NS.A.1C

What do you need to have when adding unlike fractions?

• common denominator

• common numerator

• common numerator and denominator

Tags

CCSS.7.NS.A.1C

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

Tags

CCSS.7.NS.A.1C

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

• common numerator

• common denominator

• equivalent fraction

• mixed number

Tags

CCSS.7.NS.A.1C

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

Tags

CCSS.7.NS.A.1C