What is 720/1080 reduced as a fraction

Somone me i want to know what 18 hours out of 24 hours in a fraction

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Select all the expressions that will include a remainder.