Question
Find a rational number between $1.3$ and $1.4$

Answer

$1.3$ and $1.4$
Let $x = 1.3$ and $y = 1.4$
Rational number lying between $x$ and $y$. $\frac{1}{2}(\text{x}+\text{y})=\frac{1}{2}\big(1.3+1.4\big)$
$=\frac{1}{2}(2.7)=1.35$ 

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