PLEASE HELP is this least common multiple or greatest common factor.

Answer:
No, this question is asking how many tanks should Ignacio use? And how many of each type of fish will be in each tank? So ima guess there are 4 tanks with 3 Guppies, 2 mollies, and 3 swordtails in each of the 4 tanks that im guessing. I divided (15, 12, 9) by 4 and got (3, 3, 2). This is the best as i can go to help you. Sorry if i got it wrong.
Step-by-step explanation: