Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman

تمرين 59

Multiply the following fractions and reduce to lowest terms. Use cancellation whenever possible.
Amy Richards' movie collection occupies
of her computer's hard drive. Her photography takes up
of the drive. The operating system, application software, and miscellaneous files take up another
of the drive. If her hard drive's capacity is 120 gigabytes, how many gigabytes of free space remain on the hard drive?