Rational Numbers

 $-5\frac{1}{2}$  ..... this number is not an integer

 $-5\frac{1}{2}$  . Do you know, what we call this type of numbers?

(a)  

 A number which can be written in the form of  $\frac{B}{C}$ , where B and C are integers and C $\ne$  0 is called a Rational Number

 $-\frac{2}{3}$  ,  $\frac{6}{7}$  are all rational numbers. Can we tell 0, -2, 4 are rational numbers?

Find the values of P and Q in the Following number

 $\sqrt{9}$  

Find the values of P and Q in the Following number

0.5 in the simplest form

Rational numbers are closed under the operations of

Addition of two rational numbers is also Rational number

Subtraction of two rational numbers is also Rational number

Multiplicatioin of two rational numbers is also Rational number