Is 27 out of 50 is equivalent to 18 out of 40?

Answer 1

Learn how to use "common denominators". The common denominator for 27/50 and 18/40 is 200. To get this common denominator, you need to multiply both the numerator and denominator of 27/50 by 4, giving you 108/200. (A fraction remains the same as long as you multiply both the top and bottom numbers by the same number.) To get 18/40 to the common denominator of 200, you have to multiply both the top and bottom by 5. Once you do that, both fractions will have 200 as the denominator, so you can just look to see if the numerator is the same. If not, they aren't equal. Good luck.