1/1,000,000 cant be simplified sorry kid
In this question, the turtle doing a dive from an initial position(20 5/6 inch) into a final position( 32 1/4 inch) and you asked the change in the position. Change in position will be determined by dividing final position with the initial position. The calculation would be:
distance= final position - initial position
distance = 32 1/4 inch - 20 5/6 inch= 11 5/12 inch = 11.416 inch below the surface