Ijust need to solve and put the answer in simplest form. 1/5 x =4

Yes, the answer is x=20. How to do it is this, if you want to know what decimal a fraction equals, all you do is 100 divided by the denominator. For example, 100/8=12.5 but, that’s not the answer. You move the decimal two places to the left so it’s .125 so 1/8 = .125. Another way doing it is dividing the numerator from the denominator. Like this: 3/8 equals .375. I hope that helped!!!