The fraction 3/4 represents three parts out of a total of four equal parts. It is a way to express a portion of a whole. For example, if you have a pizza divided into four equal slices and you eat three of them, you have consumed 3/4 of the pizza. In mathematical terms, the number above the line, called the numerator, indicates how many parts you have, while the number below the line, called the denominator, shows the total number of equal parts. 3/4 can also be expressed as a decimal, which is 0.75, or as a percentage, which is 75%.