Hello, the answer of each option is given below.
![(2)/(7)+(1)/(7)+(1)/(7)=(4)/(7)](https://img.qammunity.org/2023/formulas/mathematics/high-school/wehlixywtef5qogzmt1bv0t08d4hek0h05.png)
![(4)/(8)-(3)/(10)=((10.4)-(8.3))/((8.10))=(16)/(80)=(16/16)/(80/16)=(1)/(5)](https://img.qammunity.org/2023/formulas/mathematics/high-school/r75zkngrl6cmejl3tu1zzlxsq39ymwgm61.png)
![3.5+12.11+105.007=120.617](https://img.qammunity.org/2023/formulas/mathematics/high-school/b8fo0wskjg6554s2awu0r4ezwvugsfjn1v.png)
- Missed equation that's why we can not solve effectively.
![652.835-321.6571=331.1779](https://img.qammunity.org/2023/formulas/mathematics/high-school/l3x2ldj1vd305n1jkzq7o8s1yb09wmiawo.png)
Good luck! These are four-operation-equations. We should calculate by our hand or try to use calculator to get the result. Anyway, If you have any question(s), then feel free to ask in comments!