Say that on your last science test, you scored 45 out of 75 points. What is your grade as a percentage?

1 Answer
Mar 9, 2018

60%

Explanation:

Find the fraction of the score # => 45/75 = 3/5#
Multiply that with 100 to get the percentage #=> 3/5*100 = 60%#

Note : Percentage is just the way of telling what part of 100 is a fraction. For example,
the fraction #1/2# is equal to 50 parts out of 100.
Similarly, #1/5# is the same as 20 parts out of 100

So the score #45/75# which is the same as #3/5# is 60 parts out of 100, hence 60%