Type the answer in lowest form. An example of a question would be 1/10+1/10=. An example of an answer would be 1/5. If the answer is bigger than 1 type 1+. If its lower than 0 type 0-.
Original idea by @Scratchsquirrel14. Here's a link to his game, https://scratch.mit.edu/projects/282349176. (don't include the period and the end of the link.)