Answer:
Step-by-step explanation:
In math, a term is a combination of coefficients, constants and /or variables, each combination being separated by either a + sign or a - sign.
2/5 is now 10/25 now add 10/25+11/25=21/25
The answer is the top one
My guy I have no idea so I would just cheat sorry
Explaination
Change the numbers into improper fractions then subtract