The question was "1/4 x 1/3?": https://scratch.mit.edu/users/RokCoder/#comments-172996285 1/3 of 1/4 of the whole is 1/12 Or, as @Avery_Alicorn put it "1/4 x 1/3 is basically just multiplying the numerators and the denominators separately, then putting them into one fraction, so 1 x 1 is 1, for the numerators, and 4 x 3 is 12 for the denominators, therefore it is 1/12". Triangle filler code by @TheLogFather: https://scratch.mit.edu/projects/55619918/ All other code by me (@kriblo).