Rational numbers
Rational numbers :- The numbers of the form p/q , where p and q are integers and q is not equal to zero, q≠ 0 , are called rational numbers. 0 is neither positive nor negative. Example- Numbers 3/5 , -1/14 is a rational number. - Every integer is a rational number. - Every whole number is a rational number because every whole number can be expressed as a fraction. Positive rationals - A rational number is said to be positive if its numerator and denominator are either both positive or both negative. Example - 3/7 or -6/11 are positive rationals. Negative rationals - A rational number is said to be negative if its numerator and denominator are of opposite signs. Example- -7/9, 4/-11 are negative rationals. Some important facts :- 1. The product of a rational number and its reciprocal is 1. 2. Zero '0' has no reciprocal. 3. The reciprocal of a positive rational number is positive. 4. The reciprocal of a negative rational number is negative. 5. Every natural number N