número racionalnúmeros racionaisℚnúmero racional camporacionais
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PT
Em matemática, um número racional é todo número que pode ser representado por uma fração a b {\displaystyle {\frac {a}{b}}} de dois números inteiros, um numerador a a e um denominador não nulo b b.
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more...
PT
Em matemática, um número racional é todo número que pode ser representado por uma fração a b {\displaystyle {\frac {a}{b}}} de dois números inteiros, um numerador a a e um denominador não nulo b b.
Wikipedia
Número que pode ser representado por uma razão entre dois números inteiros
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