Well, I wouldn't want to oversimplify things and come across as patronising.I see what you did there. But the remnants of the math teacher in me wants to point out that you should reduce that fraction to three-fifths.In May, I was told that teaching the 2nd and 3rd year middle school kids how to read large numbers was too easy for them.I would say that a good twelve-twentieths of my grade three middle school students still mix up "12" and "20"

Guess who can't read the large numbers that are part of the lesson we're doing now.

I remember my dad's favourite mathematical expression when talking about politicians or people he didn't like, and that was 'he knows three-fifths of fcuk-all'. The answer being?

We used to say "Square root of bugger all".

Also, "She doesn't have a click." A click being 1/60 of a clue.