Since convert $$ 1.3 $$ into fraction from , we get $$ \dfrac {13}{10} $$
$$ \dfrac {18}{15}...... \dfrac {13}{10} $$
Make it as like a fraction , multiply in numerator and denominator with the same digit.
$$ \dfrac {18}{15} \times \dfrac {10}{10} = \dfrac {180}{150} $$ and $$ \dfrac {13}{10} \times \dfrac {15}{15} = \dfrac {195}{150} $$
$$ \dfrac { 180}{150} < \dfrac {195}{150} $$ So, $$ \dfrac {18}{15} < 1.3 $$