natural numbers
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7 all negative integers opposites are the positive form
Numbers that cannot be expressed in the form of a ratio of two integers.
They are numbers which are written in the form p/q where p and q are integers.
All integers are rational numbers, not all rational numbers are integers. Rational numbers can be expressed as fractions, p/q, where q is not equal to zero. For integers the denominator is 1. 5 is an integer, 2/3 is a fraction, both are rational.
Rational numbers are numbers that can be written as the division of two integers where the divisor is not zero. Irrational numbers are numbers that are not rational.Irrational numbers, therefore, are numbers that can notbe written as the division of two integers where the divisor is not zero.