HELPP A company paid overtime wages or hired temporary help during 9 months of the year. Overtime wages were paid during 7 months, and temporary help was hired during 4 months. At the end of the year, an auditor examines the accounting records and randomly selects one month to check
the payroll. What is the probability that the auditor will select a month in which the company paid overtime wages and hired temporary help?
Express your answer as a fraction in simplest form.
The probability is