performance - Javascript avoid 0.2 + 0.4 = 0.6000000000000001 other than Math.round()

Is there any better way other than

Math.round(0.2+0.4) = 0.6

Actually, I have a series of index 0, 0.02, 0.04, 0.06, 0.08, 0.10 ----

I have to convert it to Array Index 0,1,2,3,4,5-- by dividing by 0.02

JavaScript provides

 0.28/0.02 = 14.000000000000002

I solve this problem by Math.round(0.28/0.02).
I am curious is there any other or better way to solve this problem