Convert 55602 seconds to minutes

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test