Answer:
Step-by-step explanation:
Original binary number:
(1101)2
Grouping into sets of three (starting from the right):
Original: 1101
Group with leading zeros: 001 101
Convert each group to octal:
(001)2 in binary is 1 in decimal.
(101)2 in binary is 5 in decimal.
Thus,
(1101)2=(15)8
.