Each of the following lines has been divided into fractional parts, Although each line is the same length and each line equals one, the fraction parts of each line are different. In these exercises, each of the fractional parts are equal. Write the fraction for each exercise over the fraction parts that make up the line. Then add the fraction parts of each line and complete the exercise. 11. of- of of- = = 12. 13. 14. 15 S 16