The result of your conversion between therm [Europe] and dekatherm appears here
To convert between Therm [Europe] and Dekatherm you have to do the following:
First divide 1.0550559e+08 / 1.055057e+09 = 0.0999999
Then multiply the amount of Therm [Europe] you want to convert to Dekatherm, use the chart below to guide you.
Symbol: thm
No description
Symbol: dathm
No description