Question

Brian and Carlos are sharing a large sub sandwich. Brian ate 2 / 5 of the sandwich, and Carlos ate 1 / 5 of the sandwich. How much of the sandwich is left over?

Answer 1

Brian ate 2 / 5 of the sandwich, and Carlos ate 1 / 5 of the sandwich.

between them they ate 2/5 + 1/5 = 3/5

there remains 1-3/5 = (5-3)/5 =2/5

Explanation:

(1 = whole sandwich = 5/5)

Answer 2

`(2)/(5)` is left over

Explanation:

the whole sandwich can be divided into 5 fifths, that is

1 =
`(5)/(5)`

then the amount left over is

1 -
`(2)/(5)` -
`(1)/(5)`

=
`(5)/(5)` -
`(2)/(5)` -
`(1)/(5)`

=
`(5-2-1)/(5)`

=
`(2)/(5)`