Question

Select the rational numbers from the list which are also the integers.​ [3 marks]

Answer 1

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:

$\frac{1}{1},\frac{0}{1},\frac{2}{1},\frac{-3}{1},\frac{-1}{1}$ (1 mark)

There is one more rational numbers whose denominator is 1 when it is reduced to its lower form.

$\frac{4}{2}=\frac{2}{1}$ (1 mark)

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

$\frac{1}{1},\frac{0}{1},\frac{2}{1},\frac{-3}{1},\frac{-1}{1},\frac{4}{2}$ (1 mark)