can someone please check my answers

simplest form evaluate 2/3+3/5-5/7= 58/105
6. 3/7*24/25 divide by 6/7= 12/25
8.find GCF 432,360,288=72
9. 1050,9360,330=30
11. find LCM 14,75,78=13,650

Yes.

6. Yes.

8. Yes.

9. Yes.

11. Yes!