Q: Do positive rational numbers form group?

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The rational numbers form an algebraic structure with respect to addition and this structure is called a group. And it is the property of a group that every element in it has an additive inverse.

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 form a proper subset of real numbers. So all rational numbers are real numbers but all real numbers are not rational.

They are numbers which are written in the form p/q where p and q are integers.

The main subgroup is the rational numbers. The set of irrational numbers is not closed with regard to addition basic arithmetical operations and so does not form a group.

Related questions

A rational number is a number that can be expressed in fractional form.

The rational numbers form an algebraic structure with respect to addition and this structure is called a group. And it is the property of a group that every element in it has an additive inverse.

Some rational numbers are negative numbers. Rational numbers are those numbers that can be expressed as one integer over another integer, ie of the form p/q where p & q are both integers. For example: 1/3, 5/8, 36/5, -27/58

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 form a proper subset of real numbers. So all rational numbers are real numbers but all real numbers are not rational.

They are numbers which are written in the form p/q where p and q are integers.

The main subgroup is the rational numbers. The set of irrational numbers is not closed with regard to addition basic arithmetical operations and so does not form a group.

Minus two.Some rational numbers are positive, some are negative. -9 is a negative rational number.

The real numbers.

The set of Real numbers.

Rational numbers are numbers which can be written in the form p/q where p and q are integers and q > 0. Rationals is often used as an abbreviation to refer to the set of all rational numbers.

The term absolute value means that whether the number is positive or negative, you make it into a positive number, so the absolute value of, for example, minus six, is six. Rational number are numbers which can be expressed in the form of a ratio, meaning one integer divided by another integer.