Kimi has a part-time job tutoring students in math for 40 hours each month. She will be tutoring one student for 1/4 of the allotted time this month and another student for 3/8 of the allotted time this month. How many hours of tutoring will she be able to provide to other students this month? Solve this multi-step real-world problem involving multiplication with fractions. Express the answer in simplest form.
The first student will receive 40 * (1/4) = <<40*(1/4)=10>>10 hours of tutoring.
The second student will receive 40 * (3/8) = <<40*(3/8)=15>>15 hours of tutoring.
The total tutoring time for the first and second student is 10 + 15 = <<10+15=25>>25 hours.
Hence, Kimi will be able to provide 40 - 25 = <<40-25=15>>15 hours of tutoring to other students this month. Answer: \boxed{15}.