let\'s translate to decimal like this:
0∙20+0∙2-1+1∙2-2+1∙2-3+0∙2-4+0∙2-5+1∙2-6+1∙2-7+0∙2-8+0∙2-9+1∙2-10 = 0∙1+0∙0.5+1∙0.25+1∙0.125+0∙0.0625+0∙0.03125+1∙0.015625+1∙0.0078125+0∙0.00390625+0∙0.001953125+1∙0.0009765625 = 0+0+0.25+0.125+0+0+0.015625+0.0078125+0+0+0.0009765625 = 0.399414062510
got It: 0.01100110012 =0.399414062510