find common denominators, 8/11 - 4/15 = 120/165 - 44/165 = 76/165. That is your answer is simplest form.
To find the difference between 26 and 15, you would subtract 15 from 26 to get 11.
11
It is: 165/15 = 11
The difference in local mean time between two longitudes is the difference in longitudes divided by 15 degrees per hour (15 degrees/hour). The difference in standard times between any two places depends on the government or governments that has/have jurisdiction over the places involved.
15 / (3/11) = 15* (11/3) = 5*11 = 55
11
15
-15
150
0.7333
7.3333
It is 11/12.