Any way to simplify this fraction without a calculator?

[hahaha158]

Homework Statement

I was looking at a solution for a practise question and in the last step they simplified

-[(0.02)^4]/[4(0.98)^4]

to

1/(4*49^4)

How do you do this without a calculator?

 

[hahaha158]

never mind I am an idiot please ignore/delete this post.

 

[HallsofIvy]

Great. For any others who were wondering, you don't need a calculator to see that .02/.98= 2/98= 1/49.

However the original form is negative and the final result is positive. Did you accidently drop the "-"?