A tire company has three types of employees: mechanics, supervisors, and secretaries. Of the employees, 3/4 are mechanics and 7/32 are supervisors. What fraction of employees are secretaries?
to find the answer you have to make common denominators, so mechanics would be 3/4 x 8 = 24/32 and if there are 7/32 supervisors than that equates to 7+24= 31/32 of the staff, leaving 1/32 of secretaries