two fifth graders out of forty fifth graders went to see a dinosaur exhibit what fractional part of the group is that?
2/40 = 1/20
To find the fractional part of the group that went to see the dinosaur exhibit, you need to divide the number of fifth graders who went to see the exhibit by the total number of fifth graders.
In this case, two fifth graders went to see the exhibit out of a group of forty fifth graders. So the fractional part can be calculated as:
(2 fifth graders) / (40 fifth graders)
To simplify this fraction, you can cancel out common factors, such as 2:
(1 fifth grader) / (20 fifth graders)
So the fractional part of the group that went to see the dinosaur exhibit is 1/20.