Should a comma be placed before the word and?

Answer 1

Yes and No, either way, it doesn't matter.

Ans no. 2

If you want to write correct English then it does matter. You should separate items in a list by commas except thatthe last two items are separated by the word 'and' but with no comma.

Example - The five full vowels in the English language are a, e, i, o and u.

Answer 2

It depends upon the situation. While the comma is often left out in a series, it is still considered proper to use it in a series of three or more words to avoid confusion and to afford proper pausing when reading aloud. As an example: I enjoy reading, writing, and singing. As opposed to: I enjoy reading, writing and singing. Another place where you would use a comma before "and" is similar to when "but" is used. Basically, if you could use a period where you put the comma and start the sentence without either conjunction. For example: He ran through the door, and he screamed at the top of his lungs! Which could also be written: He ran through the door. He screamed at the top of his lungs! You can also find more information at www.chicagomanualofstyle.org/.

Answer 3

Yes, however it's usually grammatically unnecessary. Consider: "You don't need me, and I don't need you." The comma makes it look/sound better, but it's not really needed.