Decimal numbers that may be expressed as a fraction, the denominator of which is a power of ten. For example, the numerals formula_5 represent the fractions , , . More generally, a decimal with digits after the separator represents the fraction with denominator , whose numerator is the integer obtained by removing the separator. Expressed as a fully reduced fraction, the decimal numbers are those, whose denominator is a product of a power of 2 by a power of 5. Thus the smallest denominators of decimal numbers are The "integer part", or "integral part" of a decimal is the integer written
Repeating decimal repetition. Examples of such irrational numbers are the square root of 2 and . There are several notational conventions for representing repeating decimals. None of them are accepted universally. In English, there are various ways to read repeating decimals aloud. For example, formula_1 may be read "one point three repeating", "one point three repeated", "one point three recurring", or "one point three into infinity". In order to convert a rational number represented as a fraction into decimal form, one may use long division. For example, consider the rational number 5/74: etc. Observe that at each step we have a remainder;