If you are trying to figure out how many marbles Timmy gave away, let's see -
All you really do is divide 24 into 6 pieces, then take 1 piece and count how many is in that one piece. Let's do it -
24 ÷ 6 = 4
See? Super easy, right? 1/6 of 24 marbles is equal to four marbles.
↑ ↑ ↑ Hope this helps! :D