​ how do u turn a decimal back into a fraction

https://www.khanacademy.org/math/pre-algebra/pre-algebra-decimals/pre-algebra-decimals-to-fractions/v/converting-decimals-to-fractions-1-ex-1

What is Khan Academy?

Khan Academy is the one type of video sharing website. They give you knowledge from basic to advance in various subjects like Maths, Computer Science. It was founded by Salman Khan - A MIT Graduate from US. Even Google has given them lots of technical support as well as financial support. You can read this article on Khan Academy http://www.thasariya.com/khan-academy-a-rich-academy-of-accounting-computer-science-gmat-maths-physics-and-lot-more/