52 minutes and 30 seconds + 27 minutes and 49 minutes + 4 hours and 13 minutes and 53 seconds + 4 hours and 44 minutes and 12 seconds equals

60seconds=1 minute
60 mins=1hour

add them
add seconds to seconds,  minutes to minute, hous to hours,
first do seconds

sec
30+53+12=95=60+35=1 minute and 35 seconds
add this 1 minute to the minutes

min
1+52+27+49+13+44=186=60+60+60+6=1 hour+ 1 hour+1 hour+6 mins=3 hours+6 mins
add 3 to the hours

hours
3+4+4=11

11 hour
6 mins
35 seconds

sam as other prlbme excep with 12 seconds, 44 mins, and 4 hours more