Rediculously simple mathematic formula is not behaving as expected [duplicate]

Question

So, for whatever reason the following simple math equation is behaving oddly

5.1 * 100
> 509.99999999999994

is there a reason this is not resolving to 510?

what needs to be done in javascript in order for it to equal 510?

-- Edit

this post was flagged as a "duplicate" and pointed to a response that does not help a javascript developer, it simply pointed it to a generic math post. My question was "what needs to be done in javascript in order for it to equal 510".