Step by step solution :

	6	5	0	E
+	0	8	C	1

Step-1 :
`=E_16+1_16`
`=14_10+1_10`
`=15_10`
`=F_16`
`:.` Sum`=F`

	6	5	0	E
+	0	8	C	1
				F

Step-2 :
`=0_16+C_16`
`=0_10+12_10`
`=12_10`
`=C_16`
`:.` Sum`=C`

	6	5	0	E
+	0	8	C	1
			C	F

Step-3 :
`=5_16+8_16`
`=5_10+8_10`
`=13_10`
`=D_16`
`:.` Sum`=D`

	6	5	0	E
+	0	8	C	1
		D	C	F

Step-4 :
`=6_16+0_16`
`=6_10+0_10`
`=6_10`
`=6_16`
`:.` Sum`=6`

	6	5	0	E
+	0	8	C	1
	6	D	C	F

Step by step solution :

	4	6	B	8
+	0	5	2	E

Step-1 :
`=8_16+E_16`
`=8_10+14_10`
`=22_10`
`=16xx1+6`
`=16_16`
`:.` Sum`=6` and carry`=1`

			1
	4	6	B	8
+	0	5	2	E
				6

Step-2 :
`=1+B_16+2_16`
`=1+11_10+2_10`
`=14_10`
`=E_16`
`:.` Sum`=E`

			1
	4	6	B	8
+	0	5	2	E
			E	6

Step-3 :
`=6_16+5_16`
`=6_10+5_10`
`=11_10`
`=B_16`
`:.` Sum`=B`

			1
	4	6	B	8
+	0	5	2	E
		B	E	6

Step-4 :
`=4_16+0_16`
`=4_10+0_10`
`=4_10`
`=4_16`
`:.` Sum`=4`

			1
	4	6	B	8
+	0	5	2	E
	4	B	E	6

Step by step solution :

	5	C	E	4	4
+	0	0	3	6	D

Step-1 :
`=4_16+D_16`
`=4_10+13_10`
`=17_10`
`=16xx1+1`
`=11_16`
`:.` Sum`=1` and carry`=1`

				1
	5	C	E	4	4
+	0	0	3	6	D
					1

Step-2 :
`=1+4_16+6_16`
`=1+4_10+6_10`
`=11_10`
`=B_16`
`:.` Sum`=B`

				1
	5	C	E	4	4
+	0	0	3	6	D
				B	1

Step-3 :
`=E_16+3_16`
`=14_10+3_10`
`=17_10`
`=16xx1+1`
`=11_16`
`:.` Sum`=1` and carry`=1`

		1		1
	5	C	E	4	4
+	0	0	3	6	D
			1	B	1

Step-4 :
`=1+C_16+0_16`
`=1+12_10+0_10`
`=13_10`
`=D_16`
`:.` Sum`=D`

		1		1
	5	C	E	4	4
+	0	0	3	6	D
		D	1	B	1

Step-5 :
`=5_16+0_16`
`=5_10+0_10`
`=5_10`
`=5_16`
`:.` Sum`=5`

		1		1
	5	C	E	4	4
+	0	0	3	6	D
	5	D	1	B	1