# What is the defination of real,rational,irrational nos.?

2
by salo

2014-04-22T15:55:43+05:30
a rational number is any number which can be written in the form of p/q where p and q are integers and q≠0.
eg- 0/1 ,-888/1, 5/44
they are denoted by the symbol Q.
an irrational number is any number which cannot be written in the form of p/q where p and q are integers and q≠0.
eg- √2,√77,π
they are denoted by the symbol S.
A real number consists of both rational and irrational number.
eg-√45, π, 0, -99
they are denoted by the symbol R.
i hope this helps you with your homework salo.
2014-04-22T16:26:50+05:30
A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers.

All numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction.

A real number may be either rational or irrational; either algebraic or transcendental; and either positivenegative, or zero. Real numbers are used to measure continuous quantities.