In Kaylee's history class, 1/2 of the students are making videos for their final project and 1/12 are making dioramas. What fraction of the students are making either a video or a diorama? Write your answer as a fraction or as a whole or mixed number.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field