Here are the solutions to the fraction addition problems. Since the denominators (the bottom numbers) are the same in each problem, you simply add the numerators (the top numbers) together and keep the denominator the same.
1.
4/7 + 1/7
* Add the tops: 4 + 1 = 5
* Keep the bottom: 7
* Result:
5/7
2.
5/9 + 3/9
* Add the tops: 5 + 3 = 8
* Keep the bottom: 9
* Result:
8/9
3.
1/9 + 7/9
* Add the tops: 1 + 7 = 8
* Keep the bottom: 9
* Result:
8/9
4.
1/10 + 8/10
* Add the tops: 1 + 8 = 9
* Keep the bottom: 10
* Result:
9/10
5.
4/8 + 1/8
* Add the tops: 4 + 1 = 5
* Keep the bottom: 8
* Result:
5/8
6.
4/12 + 4/12
* Add the tops: 4 + 4 = 8
* Keep the bottom: 12
* Result:
8/12 (Note: This can be simplified to 2/3, but 8/12 is the direct sum).
7.
4/12 + 6/12
* Add the tops: 4 + 6 = 10
* Keep the bottom: 12
* Result:
10/12 (Note: This can be simplified to 5/6, but 10/12 is the direct sum).
8.
7/11 + 3/11
* Add the tops: 7 + 3 = 10
* Keep the bottom: 11
* Result:
10/11
9.
1/6 + 2/6
* Add the tops: 1 + 2 = 3
* Keep the bottom: 6
* Result:
3/6 (Note: This simplifies to 1/2, but 3/6 is the direct sum).
10.
5/8 + 1/8
* Add the tops: 5 + 1 = 6
* Keep the bottom: 8
* Result:
6/8 (Note: This simplifies to 3/4, but 6/8 is the direct sum).
Final Answer:
1. 5/7
2. 8/9
3. 8/9
4. 9/10
5. 5/8
6. 8/12
7. 10/12
8. 10/11
9. 3/6
10. 6/8
Parent Tip: Review the logic above to help your child master the concept of addition of similar fractions worksheet for grade 2.
