5/8 of students are in band AND chorus, and we are given that there are 32 students in total. To find how many are in both band and chorus, rewrite 5/8 to have a common denominator of 32 ( 5/8 = x/32), which you can do by multiplying 8 by 4. To find x (the number of students in band and choir, multiply the numerator by 4 as well; 5 * 4 = 20 students.
