by Guest » Thu Oct 05, 2017 1:30 pm
When you say "use digits 0 through 9 only once" I assume that means I can use NUMBERS formed from those digits as long as I only use a digit once. So, for example, 17 is fair game since I am only using the digits 1 and 7 once, whereas 44 woulnd't be allowed.
In that case it is quite simple: 2/3 + 6/18 = 1