My mistake-, Binary Converted=110010000, so 110010000+110101= 110120101

Binary Number: 387.5+110,101=110488.5 Octal Number: 228.141113281 (My number was 400) Decimal: 400x21= 8400, 8400/16=525 Hexadecimal: 262, Remainder=(0.5)

Answer for Binary: 387.5 Answer for Octal: 51.1411132813 Answer for Hexadecimal: 26.6662597656

My work: Number=400 Re=Remainder Binary: 400/2=200, Re=0 200/2=100, Re=0 100/2=50, Re=0 50/2=25, Re=0 25/2=12, Re=(0.5) Octal: 400/8=50, Re=0 50/8=6, Re=(0.25) 6.25/8=0, Re=(0.78125) 0.78125/8=0, Re=(0.09765625) 0.09765625/8=0, Re=(0.01220703125) Hexadecimal: 400/16=25, Re=0 25/16=1, Re=(1.5625) 1.5625/16=1, Re=(0.09765625) 0.09765625/16=0, Re=(0.00610351562)