Transfer 10101.1001 from binary in decimal number system

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let\'s translate to decimal like this:

1∙24+0∙23+1∙22+0∙21+1∙20+1∙2-1+0∙2-2+0∙2-3+1∙2-4 = 1∙16+0∙8+1∙4+0∙2+1∙1+1∙0.5+0∙0.25+0∙0.125+1∙0.0625 = 16+0+4+0+1+0.5+0+0+0.0625 = 21.562510

got It: 10101.10012 =21.562510

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