0 votes 0 votes What is the correction used in BCD addition if the sum falls in invalid zone. 3 6 10 No correction please explain this question. Digital Logic digital-logic + – Akriti sood asked Dec 14, 2016 Akriti sood 1.3k views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply santhoshdevulapally commented Dec 14, 2016 reply Follow Share Adding 6 to number when it exceeds 9(decimal). because from10-15 are invalid BCD numbers. 0 votes 0 votes Akriti sood commented Dec 14, 2016 reply Follow Share so,how does adding 6 will correct it.? can u give an example? 0 votes 0 votes santhoshdevulapally commented Dec 14, 2016 reply Follow Share 98+76 98=1001(p) 1000 76=0111 0110 ----------------------- = 1110(>9) 0110 ------------------------- = 0100(carry is generated that is sent to (p) position.//(p) is for indication for u r understand =10001 0100 (again carry generated >9) = 00110 0100 ----------------------- =${\color{Blue} 1} {\color{Green} 0111} {\color{Red} 0100}$ // combine 4 bits each =1 7 4(in decimal) 1 votes 1 votes Akriti sood commented Dec 15, 2016 reply Follow Share actually the alignment for ur calculation part is nt proper due to which i am nt able to understand..and still not able to understand the logic..:-( 0 votes 0 votes Please log in or register to add a comment.