The Dude gets up at Insanely Early Hours every morning but he is expert at finding something fun to do while he's waiting for us to wake up. (See Treasure Hunt) Today he brought in a piece of paper that he had been expanding a fraction out on (I don't know the correct terminology here!) - whatever the opposite of reducing fractions is. He had started with the fraction 2/5 and had multiplied by 2 out to 4/10, and kept multiplying it by 2. He got it Perfectly Right to 1,024/2,560 and then did a slight carrying error in the bottom.
BUT he did Perfectly Right on the top all the way until he stopped (at 65,536!) AND he multiplied his incorrect answer correctly until the end (to 160,640).
I love how we talk about a concept (like reducing fractions) and he takes it in a slightly different direction to the Extreme. (I like less that he chided me for doing it the Easy Way as I wrote out the multiplication to check his answer).
One thing is certain - the Dude Loves Math!