Math Help - Question about Ring

hi

I dont understand the following question

"Give an example of a ring without unity that is contained in a field"

Thx

2. Originally Posted by toxiccan
hi

I dont understand the following question

"Give an example of a ring without unity that is contained in a field"

Thx
the even integers

can you check that it has the desired properties? do you know what a ring, a field and unity are?

the even integers are contained in the field $\mathbb{Q}$