24:36:42 = 4:6:7
36/42
The ratio is 48 : 36.
42 - 36 = 6
-6
The ratio 1:36 = 0.0277...
36 x 42 = 1512
78
It is 42 - 36 = 6 hours.
Half way between 36 and 42 is (36 + 42) ÷ 2 = 39.
36, as percentage of 42 is 100*36/42 = 85 5/7%
the answer to the reduced ratio of 58 to 42 is 29 to 21.