Max and Dustin work at the local food market. Max can scan 5 items every 6 seconds. Dustin can scan 7 items every 10 seconds. What is their combined rate of scanning items per second? In other words, how fast can they scan items working together?

Enter the numerator and the denominator of the answer as a fraction in lowest terms.

Together Max and Dustin can scan at a rate of how many items per second?