Also, thank you for playing!
To clarify confusion points based on comments:
1. yes, you can bug the game by spamming SPACE/Z button. Sorry for the bug!
2. there is a hint section. But if still confused, see Numbers 3-5 below, otherwise stop reading here and give it a go :)
3. Press SPACE so you see cat. Cat has legs/tails. Each leg = 1, each tail =10. So 3 legs and 2 tails is number 23. Black is the denominator. Green is the numerator. So if 1 leg green and 1 tail green, 11, so fraction is 11/23.
4. You have a brush. It goes from 1 to 60 by pressing arrows. Z activates brush. You must find common factors and clean the cats by brushing them.
5. If 1 no common factors, just brush with 1.
6. example: 24/48. You brush with 2. Get 12/24. You brush with 12. Get 1/2. You brush with 1.