What is bigger 3 over 4 or 4 over 6?

To compare the sizes of fractions, it's helpful to find a common denominator. In this case, the common denominator is 12. When both fractions are converted to have a denominator of 12, 3/4 becomes 9/12 and 4/6 becomes 8/12. Therefore, 3/4 (9/12) is bigger than 4/6 (8/12) because 9/12 is greater than 8/12.