Adding & subtracting fractions

Same denominator

Name: ______________________________Date: ______________Score: ______ / 20

1.
What is 1/9 + 3/9?
1. A4/9
2. B4/18
3. C3/9
4. D4/81
2.
What is 3/4 + 1/4? Give your answer as a whole number.
3.
What is 5/6 − 2/6?
1. A3/6
2. B3/12
3. C7/6
4. D3/0
4.
3/8 + 4/8 = ?/8. What is the numerator of the answer?
5.
What is 7/10 − 3/10?
1. A4/10
2. B4/20
3. C10/10
4. D4/0
6.
A cake is cut into 9 equal pieces. If 4/9 is eaten, how much is left, as a number of ninths? (Type just the numerator.)
7.
What is 2/5 + 2/5?
1. A4/5
2. B4/10
3. C2/5
4. D4/25
8.
To add fractions with the same denominator, you add the numerators and keep the denominator the same.
True False
9.
1/9 + 3/9 = 4/18.
True False
10.
These fractions all have the same denominator. Put them in order, from smallest to largest.
Write the order (smallest to largest) in the boxes:
- ?3/9
- ?1/9
- ?4/9
- ?2/9
11.
2/4 + 1/4 = n/4. What is the numerator n?
12.
8/10 − 3/10 = n/10. What is the numerator n?
13.
2/3 + 1/3 = n/3. What is the numerator n?
14.
5/10 + 3/10 = n/10. What is the numerator n?
15.
7/7 − 3/7 = n/7. What is the numerator n?
16.
4/11 + 1/11 = n/11. What is the numerator n?
17.
5/6 − 2/6 = n/6. What is the numerator n?
18.
9/10 − 8/10 = n/10. What is the numerator n?
19.
1/3 + 2/3 = n/3. What is the numerator n?
20.
5/6 + 1/6 = n/6. What is the numerator n?

Answer key

Adding & subtracting fractions — Same denominator