Run-on sentences:

1a. Both Lisa and Alan enjoy photography; both have won prestigious awards.
1b. Both Lisa and Alan enjoy photography, both have won prestigious awards.
Which one is correct and why?

3 answers

Do you see two separate sentences?

Both Lisa and Alan enjoy photography.
Both have won prestigious awards.

To separate two complete sentences (or independent clauses), you need a semicolon or a period between them.
yes i do see 2 complete sentences, so then i would use a semicolon between them since we are discussing semicolons. thank you
Yes. 1a. is correct.