Bill reads 1/5 of a book on monday he reads 2/3 of a book on tuesday if he finish reading the book on wednesday what fraction of the book did he read on wednesday

total book =1

1/5 + 2/3 + wed = 1

get a common denominator of 15

1/5 * 3/3 + 2/3 * 5/5 + wed = 1 * 15/15

3/15 + 10/15 + wed = 15/15

combine like terms

13/15 + wed = 15/15

subtract 13/15 on each side

wed = 15/15-13/15

wed = 2/15

He read 2/15 of the book on Wednesday

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed