Li Lin divided 2.6 by a one-digit decimal, miscalculated as dividing by an integer, and the result was reduced by 1.8. What is the decimal?
李林同学把2.6除以一个一位小数，错算成除以整数，结果减少1.8，这个小数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">1.8 / 9</gadget>
<output>0.2</output>

<gadget id="calculator">0.2 * 10</gadget>
<output>2</output>

<gadget id="calculator">2.6 / 2</gadget>
<output>1.3</output>

<result>1.3</result>