Question 1167152
rene has 1 box of cupcakes.


she gives 1/2 to john, so john gets 1/2 of a box and she keeps 1/2 of a box.


john gives 3/4 of his share to elena.


elena gets 3/4 * 1/2 = 3/8 of the box.


john keeps 1/4 * 1/2 = 1/8 of the box.


rene keeps 1/2 of the box.
john keeps 1/8 of the box.
elena gets 3/8 of the box.


1/2 + 1/8 + 3/8 = 4/8 + 1/8 + 3/8 = 8/8 = 1.


all the parts add up, confirming the calculations are correct.