Subtract :

0.75 from 1.3

Converting the given decimals into like decimals, we have to subtract 0.75 from 1.30.

Subtracting columnwise, we get:

$\begin{array}{r} 1.30 \ -\phantom{0}0.75 \ \hline 0.55 \ \hline \end{array}$

Hence, the answer is 0.55