To the other guy btw the math is all the same no matter how u slice it .2 =5. i wasnt using algebra, i was using division. / means divide in math terms. no point of using aleg for that. no one is wrong we looked at the math problem from different angle/
0.2 is not equal to 5, in the same sense that two dimes is not five dollars. Nor is 0.2 equal to five percent; it is equal to one-fifth, which is 20%. Well, theoretically, in a base 40 mathematic system, it could be accurate to say that 4 is 5% of 20, but only because that 20 would be 80, and even then I'm not sure how the concept of percent translates to other bases.
I think to sum it up, he wasn't questioning your division skills, just that you were diving in the wrong direction or just completely misunderstanding the concept of percentage.