What two numbers add up to 9898?

There are infinite combinations of two numbers that add up to 9898. Here are some examples using negative numbers:

-1 + 9899 = 9898
-2 + 9900 = 9898
-3 + 9901 = 9898
...

Here are some examples using two fractions that will add up to 9898:

9898/2 + 9898/2 = 9898
19796/3 + 9898/3 = 9898
29694/4 + 9898/4 = 9898
...

And here are some examples using two decimal numbers that will add up to 9898:

1.25 + 9896.75 = 9898
2.50 + 9895.5 = 9898
3.75 + 9894.25 = 9898
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 9898?", it may be more interesting to set some criteria to limit the result. We will set the follow criteria:

1) Only positive whole numbers can add up to 9898. (0 is not a positive or negative number and should not be included.)

2) Since a+b=29 is the same as b+a=29, we should only list it once.

Now, the answer to "What two numbers add up to 9898?" has 4949 answers:

1 + 9897 = 9898
2 + 9896 = 9898
3 + 9895 = 9898
.
.
4947 + 4951 = 9898
4948 + 4950 = 9898
4949 + 4949 = 9898

We have truncated the list above due to space, but you may be interested to know that we calculated the number of answers by dividing 9898 by 2 and then rounded down to the nearest whole number if necessary.

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