Пожалуйста не игнорируйте, вычислите с решением дроби

1.
3/7 + 2/7 = (3+2)/7 = 5/7

2. 4/5 + 1/2 = 8/10 + 5/10 = (8+5)/10 = 13/10 = 1 3/10 Одна целая три десятых

3. 1/2 + 1/5 + 1/10 = 5/10 + 2/10 + 1/10 =
= (5+2+1)/10 = 8/10 = 4/5

4. 5/7 - 9/14 = 10/14 - 9/14 = (10-9)/14 = 1/14

5. 1 - 2/9 = 9/9 - 2/9 = (9-2)/9 = 7/9

https://cloud.mail.ru/public/4Kah/2zeTJp6Kn

3/7 + 2/7 = 5/7
4/5 + 1/2 = 8/10 + 5/10 = 13/10 = 1 3/10
1/2 + 1/5 + 1/10 = 5/10 + 2/10 + 1/10 = 8/10
5/7 - 9/14 = 10/14 - 9/14 = 1/14
1 - 2/9 = 7/9