They are called rational numbers. The set of rational numbers contains the opposites of its members.
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Any rational or irrational is real. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Numbers in the form of a/b, where a and b are integers, are called rational numbers. 3.1415926531 can be written as 31415926531/10000000000. So it is a rational number.
The set of real numbers.
No, it is a rational number. Numbers in the form of a/b, where a and b are integers, are called rational numbers. 0.666... can be written as 20/3. So it is a rational number.
here are rational numbers--numbers that you can express as a fraction irrational numbers--numbers you cannot express as a fraction integers--whole numbers and their opposites(negatives) whole numbers--0, 1, 2, 3,... natural or counting numbers--1, 2, 3,....