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

The whole pie is 1, because 1 is 100%. Tom ate 2/3 of 1 and Sam ate 1/4 of the pie.
So, here's how to determine how much is left:
1 - (2/3 + 1/4) = 1 - (8/12 + 3/12) = 1 - 11/12 = 12/12 - 11/12 = 1/12

The correct answer is that 1/2 of the pie is left.

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