Question

Here is the easier to understand version, i wrote it again because the picture one was kinda blurry and hard to understand, anyways pls help-

1.) 4/10 + 15/10 = ?
2.) 50/20 + 60/20 = ?
3.) 60/40 + 80/40 = ?
4.) 90/60 + 80/60 = ?
5.) 120/40 + 80/40 = ?
6.) 120/40 + 140/40 = ?
7.) 110/10 + 40/10 = ?
8.) 45/5 + 60/5 = ?
9.) 105/15 + 95/15 = ?
10.) 400/20 + 410/20 = ?
11.) 210/90 + 80/90 = ?
12.) 85/10 minus ( - ) 65/10 = ?​

Answer 1

1.
`(19)/(10)`

2.
`(11)/(2)`

3.
`(7)/(2)`

4.
`(17)/(6)`

5. 5

6.
`(13)/(2)`

7.
`15`

8. 21

9.
`(40)/(3)`

10.
`(81)/(2)`

11.
`(29)/(9)`

12. 2