Question

Select the rational numbers from the list which are also the integers.​

Answer 1

Solution:

Rational numbers are numbers which are written in $\frac{p}{q}$ form where $q\ne 0$

But, the rational numbers whose denominator is 1 can be treated as integers.

So here, the rational numbers whose denominator is 1 are:

$\frac{3}{1},\frac{1}{1},\frac{0}{1},\frac{-1}{1},\frac{-2}{1}$

There are many more rational numbers whose denominator is 1 when they are reduced to its lower form.

$\frac{8÷4}{4÷4}=\frac{2}{1},\frac{9÷3}{3÷3}=\frac{3}{1},\frac{6÷3}{3÷3}=\frac{2}{1},\frac{4÷2}{2÷2}=\frac{2}{1}$

Hence, rational numbers which are also treated as integers are:

$\frac{3}{1},\frac{1}{1},\frac{0}{1},\frac{-1}{1},\frac{-2}{1},\frac{8}{4},\frac{9}{3},\frac{6}{3}and\frac{4}{2}$