Ratios
A.(Integers) (Rational numbers)B.(Rational numbers) (Integers)C.(Integers) (Rational numbers)D.(Rational numbers) (Real numbers)
Rational numbers are used in a hospital setting to prescribe dosage of drugs.
The letter R was used for real numbers. So Q, for quotients was used for rational 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.
A rational number is a number that can be written in the form a/b, where "a" and "b" are integers and b is not equal to zero. For example, whole numbers are rational numbers.
Negative rational numbers are used in the same way that negative whole numbers are used: they are simply the additive inverses of their positive counterparts.
Operations on rational numbers refer to the mathematical operations carrying out on two or more rational numbers. A rational number is a number that is of the form p/q, where: p and q are integers, q ≠ 0. Some examples of rational numbers are: 1/2, −3/4, 0.3 (or) 3/10, −0.7 (or) −7/10, etc. We know about fractions and how different operators can be used on different fractions. All the rules and principles that apply to fractions can also be applied to rational numbers. The one thing that we need to remember is that rational numbers also include negatives. So, while 1/5 is a rational number, it is true that −1/5 is also a rational number. There are four basic arithmetic operations with rational numbers: addition, subtraction, multiplication, and division.
Irrational numbers can not be expressed as fractions whereas rational numbers can be expressed as fractions
Rational?
R was used for Real numbers. Q, for rational numbers refers to the fact that it must be possible to express them as quotients [of two integers].
The letter Q in blackboard bold is used to represent the set of rational numbers - Q standing for quotient.
In the real world you can use the order of rational numbers. This is used a lot in math.