Natural numbers ( Q {\displaystyle \mathbb {Q} } , quotient = hasil bagi)
Q = { m n : m , n ∈ Z , n ≠ 0 } {\displaystyle \mathbb {Q} =\lbrace {\frac {m}{n}}:m,n\in \mathbb {Z} ,n\neq 0\rbrace }
Bilangan rasional memiliki karakteristik desimal berulang.
1 9 = 0 , 11111... = O , 1 ¯ 1 2 = 0 , 50000... = O , 5 0 ¯ 3 7 = 0 , 272727... = O , 27 ¯ {\displaystyle {\frac {1}{9}}=0,11111...=O,{\bar {1}}{\frac {1}{2}}=0,50000...=O,5{\bar {0}}{\frac {3}{7}}=0,272727...=O,{\bar {27}}}
, quotient = hasil bagi)
: Bilangan bulat
