Yes, they can be.
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.
RationalThe set of integers is a subset of the set of rational numbers. A rational number can be expressed as the ratio, or fraction of two integers a/b. So 1/2, 2/3, 5/6, 22/7, are all rational numbers. Also 3/1, -5/1, 20/5 are rational numbers, which are also integers.
Yes, numbers between 1 and 2 can be rational. A rational number is defined as any number that can be expressed as a fraction ( \frac{a}{b} ), where ( a ) and ( b ) are integers and ( b ) is not zero. For example, 1.5 (which is ( \frac{3}{2} )) and 1.25 (which is ( \frac{5}{4} )) are both rational numbers between 1 and 2. However, not all numbers in that range are rational; for instance, the square root of 2 is irrational and lies between 1 and 2.
The number 8 belongs to several sets of numbers, including the natural numbers (1, 2, 3, ...), whole numbers (0, 1, 2, 3, ...), integers (..., -2, -1, 0, 1, 2, ...), rational numbers (fractions that can be expressed as a/b where a and b are integers), and real numbers (which include both rational and irrational numbers). Additionally, 8 is an even number and a perfect cube, as it can be expressed as (2^3).
All integers are rational numbers. There are integers with an i behind them that are imaginary numbers. They are not real numbers but they are rational. The square root of 2 is irrational. It is real but irrational.
Sum of two rational numbers might be a natural number (1/2 + 1/2), but mostly it's just another rational number (1/2 + 1/3). So answer is no.
They are 4, 3 and 2 which are rational numbers because they can be expressed as fractions as for example 3 as a fraction is 3/1.
It can be but it certainly doesn't have to be. 3/4 and 1/2 are both rational numbers. (3/4) - (1/2) = 1/4, which is not an integer.
1/2, 1/3, 2/3, -3/7.
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.
No. Two irrational numbers can be added to be rational. For example, 1/3 + 2/3 = 3/3. 1/3 and 2/3 are both irrational, but 3/3 = 1, which is rational.
Rational numbers are numbers that can be expressed as the quotient of two integers (3/2, 15/16). All integers, then, are rational numbers (12 = 12/1).
Integers are whole numbers. Rational numbers can be fractions / decimals. But it is NEVER a whole number E.G. of rational numbers : 3/4 or 1.5
RationalThe set of integers is a subset of the set of rational numbers. A rational number can be expressed as the ratio, or fraction of two integers a/b. So 1/2, 2/3, 5/6, 22/7, are all rational numbers. Also 3/1, -5/1, 20/5 are rational numbers, which are also integers.
All integers are rational numbers. For example, 3 can be written as 3/1, 6/2 etc...
All of the natural numbers are rational, but there are still more rational numbers that aren't natural ones. Example: 1, 2, 3, 4, and 5 are all natural numbers, and they're all rational. 11/2, 21/2, 31/2, 41/2, and 51/2 are also rational, but they're not natural numbers.
3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.