30 minutes is 1/6th of 3 hours, so the ratio of 30 minutes to 3 hours is 1:6
9/2
18:1
160 minutes 2 & 2/3 hours = 2 X 3/3 + 2/3 = 6/3 + 2/3 = 8/3 hours 60 minutes/hour X 8/3 hours = 480 minutes/3 (the hours cancel each other out) = 160 minutes
45 minutes is 3/4 of an hour....and would be 3/32 of 8 hours
45 minutes to 2 hours is the same as 45 minutes to 120 minutes. This can be reduced to 9/24, or 9 to 24.
30 minutes is 1/6th of 3 hours, so the ratio of 30 minutes to 3 hours is 1:6
9/2
1 to 3
18:1
160 minutes 2 & 2/3 hours = 2 X 3/3 + 2/3 = 6/3 + 2/3 = 8/3 hours 60 minutes/hour X 8/3 hours = 480 minutes/3 (the hours cancel each other out) = 160 minutes
45 minutes is 3/4 of an hour....and would be 3/32 of 8 hours
(2 hours 45 minutes) + (3 hours 58 minutes) = 6 hours 43 minutes.
ANSWER:2 hours, 15 minutes. 180 minutes (Which is 3 hours)
90 seconds = 1.5 minutes. So the ratio is 1.5 : 3 or 1:2
2:1
((1 hour 32 minutes) + (2 hours)) + (3 hours 56 minutes) = 7 hours 28 minutes