Write 8pr/12p in simplest form

4pr/6p

4r/3

2r/3

2/3

Pls! does anybody know a shortcut for answering these types of questions in the future?

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?