Decimals can be expressed in what numerical form?

Decimals can be expressed in fractional form because a decimal represents a specific division of whole numbers, which is precisely what a fraction does. For example, the decimal 0.75 can be converted into a fraction by understanding that it signifies 75/100, which can be simplified to 3/4. This ability to express decimals as fractions demonstrates the relationship between the two and allows for a clearer representation of parts of a whole.

Whole numbers are numbers without fractions or decimals and do not encompass the nature of decimals, which are inherently a representation of values that fall between integers. Negative numbers represent values less than zero and can certainly include decimal points, but the question specifically asks about the numerical forms of decimals, making fractions the more appropriate answer. Complex numbers, which consist of a real part and an imaginary part, do not directly relate to decimals since they include components that transcend the simple division of quantities described by decimals. Thus, expressing decimals as fractions highlights the fundamental mathematical connections between different numerical forms.