1)1111101,011(2)=1*2^6+1*2^5+1*2^4+1*2^3+1*2^2+0*2^1+1*2^0+0*2^ -1+1*2^-2+1*2^-3=64+32+16+8+4+0+0,25+0,125=135,375(10)
2)100001,2=1*2^5+0*2^4+0*2^3+0*2^2+0*2^1+1*2^1+1*2^-1=32+0+0+0+0+1+0.5=33,5(10)
3)1011011,111=1*2^6+0*2^5+1*2^4+1*2^3+0*2^2+1*2^1+1*2^0+1*2^-1+1*2^-2+1*2^-3=64+0+16+8+0+2+1+0,5+0,25+0,125=91,875(10)