There are 12 slices of pie if jerry ate 1/3 of the pie, how many slices did he eat?

(1/3) * 12 = 12/3 = 4

To find out how many slices Jerry ate, you need to calculate 1/3 of the total number of slices (12). The process to do this is as follows:

1. Start by dividing the total number of slices by the denominator of the fraction, which in this case is 3: 12 ÷ 3 = 4.

2. The result of this division gives you the value of one-third (1/3) of the pie. Thus, Jerry ate 4 slices.

Therefore, Jerry ate 4 slices of pie.