Adding and Subtracting Fractions and Mixed Numbers with Same Denominator

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

• Numerator

• Denominator

What is the first step of adding or subtracting two fractions?

• Checking if the numerators are the same

• Checking if the denominators are the same or different

• Checking that the fractions are equal

• Adding or subtracting

When adding and subtracting fractions, what needs to be the same?

• the numerator

• the denominator

• nothing

• everything

2/12 + 3/12

• 5/12

• 5/24

• 6/12

• 6/144

• A
• B
• C
• D

2/12 + 4/12

• 6/24

• 6/12

• 6/44

1/3 + 2/3

• 3/4

• 3/3

• 4/4

Which equation represents the shaded parts of the model?

• 5/5 + 5/5 = 10/5

• 3/5 + 4/5 = 5/5

• 1/5 + 2/5 = 3/5

• 1/5 + 1/5 = 2/5

25/100 + 75/100

• 85/100

• 95/100

• 100/100