Tom and same sit down to eat a pie. tom eats 2/3 of the pie , and sam eats 1/4 of the pie what function of the pie is left

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.