Yeah.... almost all of the 1=2 (or 4=5 or 0=1 or whatever) riddles fall back to division by zero or the omission of the "absolute value"-signs (like in this picture from a few posts earlier, ofc 4-4,5 isn't equal 5-4,5, but |4-4,5|=|5-4,5|), so those errors are not too hard to spot.
hu? where did I fall?