This is my code

```
def series_sum(n):
lst = []
if n == 1:
lst.append("1.00")
return lst
else:
lst =["1.00"]
first_deno = 4
for numbers in range(2,n+1):
print("the numbers",numbers)
answer=float(lst[numbers-2]) + 1/first_deno
print("the answer",answer)
lst.append(round(answer,2))
first_deno += 3
return str((lst[-1]))
print(series_sum(5))
```

The Exercise

Your task is to write a function which returns the sum of following series upto nth term(parameter).

- You need to round the answer to 2 decimal places and return it as String.
- If the given value is 0 then it should return 0.00
- You will only be given Natural Numbers as arguments.

Examples of output is

1 → 1 → “1.00”

2 → 1 + 1/4 → “1.25”

5 → 1 + 1/4 + 1/7 + 1/10 + 1/13 → “1.57”

Link: