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is comma essential before the conjunction 'and' ?

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by confuse mind » Fri Apr 27, 2012 3:14 am
Which of the following is correct on GMAT?

She came and saw me.
She came, and saw me.
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by GmatKiss » Fri Apr 27, 2012 3:59 am
confuse mind wrote:Which of the following is correct on GMAT?

She came and saw me.
She came, and saw me.
IMO: She came to see me
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by confuse mind » Sat Apr 28, 2012 11:52 pm
GmatKiss wrote:
confuse mind wrote:Which of the following is correct on GMAT?

She came and saw me.
She came, and saw me.
IMO: She came to see me
If I keep the sense same as intended in the original question, what is the correct GMAT rule for the conjunction in this case:

Let me take another example. What is the correct answer in the following:

She came and started playing.
She came, and started playing.
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by sam2304 » Sun Apr 29, 2012 3:39 am
Only the first one is right here.

We use comma + and construction
1.when we have three or more items in a series
2.when we are to connect two independent clauses.

The second one is wrong for both of the above reasons.

Check the first two points in the below mentioned link.
https://grammar.ccc.commnet.edu/grammar/commas.htm
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