The rational numbers are the fraction field of the ring of integers. In more elementary terms, a rational number is a quotient of two integers and , where is nonzero. Two fractions and are equivalent if the product of the cross terms is equal:
the inequality holds in the integers, and has the same sign as , or
the inequality holds in the integers, and has the opposite sign as .
|Date of creation||2013-03-22 11:50:30|
|Last modified on||2013-03-22 11:50:30|
|Last modified by||djao (24)|