
John K. answered 05/15/19
Personal Tutor for Organic Chemistry and General Chemistry
Jessica, warm hearted as she is, must cut her portion of cake into 5 equal slices. But, she only has 1/3 of a cake to begin with. So, in order to define how large or small her coworkers receive, we must calculate 1/5 of 1/3 = 1/5 x 1/3 = 1/15 of the cake.