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Because that is how the set of integers and the set of rational numbers are defined.

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Q: Why negative 3 belongs to the set of integers and rational numbers?

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Integers, odd integers, negative integers, odd negative integers, rational numbers, negative rational numbers, real numbers, negative real numbers, square roots of 1, etc.

All integers are rational. Not all rational numbers are integers.

Every counting number, and the negative of it, are real, rational integers.

because fractions can be negative also. fractions aren't integers. ... All integers (positive And negative) are rational numbers (not irrational).

No, they are not because fractions can be negative also. fractions aren't integers

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Integers, odd integers, negative integers, odd negative integers, rational numbers, negative rational numbers, real numbers, negative real numbers, square roots of 1, etc.

Of the "standard sets" -10 belongs to: ℤ⁻ (the negative integers) ℤ (the integers) ℚ⁻ (the negative rational numbers) ℚ (the rational numbers) ℝ⁻ (the negative real numbers) ℝ (the real numbers) ℂ (the complex numbers) (as ℤ ⊂ ℚ ⊂ ℝ ⊂ ℂ). Other sets are possible, eg the even numbers.

All integers are rational. Not all rational numbers are integers.

It belongs to infinitely many sets. Some notable sets to which it belongs include:* Integers * Negative integers * Rational numbers * Real numbers * Complex numbers

Yes - any integers, including negative integers, are rational numbers.

Negative integers, integers, negative rationals, rationals, negative reals, reals, complex numbers are some sets with specific names. There are lots more test without specific names to which -10 belongs.

All integers, including negative integers, are rational numbers.

integers

Every counting number, and the negative of it, are real, rational integers.

It belongs to the set of negative rational numbers, negative real numbers, fractionall numbers, rational numbers, real numbers.

Integers are rational numbers, whether they are positive or negative.

because fractions can be negative also. fractions aren't integers. ... All integers (positive And negative) are rational numbers (not irrational).