Question

find three rational numbers lying between 1 by 5 and 1 by 4

Answer 1

Hey friend,
Here is the answer you were looking for:
To find out 3 rational numbers between 1/5 and 1/4:
$( \frac{1}{5} + \frac{1}{4}) \div 2 \\ \\ = \frac{1 \times 4 + 1 \times 5}{20} \times \frac{1}{2} \\ \\ = \frac{9}{40} \\ \\ to \: find \: the \: rational \: number \: between \: \frac{1}{5} and \: \frac{9}{40} \\ \\ = ( \frac{1}{5} + \frac{9}{40} ) \div 2 \\ \\ = \frac{1 \times 8 + 9}{40} \times \frac{1}{2} \\ \\ = \frac{17}{80}$

The two rational numbers b/w 1/5 and 1/4 are 9/40 and 17/80

Hope this helps!!!

@Mahak24

Thanks...
☺