Question 1154486
4 sandwiches are cut into thirds i.e. they become 4 * 3 = 12 pieces
Each piece = 1/3 of a sandwich
4 sandwiches are cut into halves i.e. they become 4 * 2 = 8pieces
Each piece = 1/2 of a sandwich

Amanda eats 2 of the one-third pieces i.e. she eats (2 * 1/3 = 2/3) of a sandwich
Brother eats 2 of the one-half pieces i.e. she eats (2/2) of a sandwich or 1 sandwich

Totally there are 8 sandwiches.
So fraction eaten by Amanda = {{{(2/3) / 8 = 1/12}}}
So fraction eaten by brother = {{{(1) / 8 = 1/8}}}
Fraction eaten by both = {{{1/12 + 1/8 = 5/24}}}

<b> Ans: 1/12, 1/8 and 5/24 </b>