Subtract the following the hex numbers:
67h
2ah
result is =

3D ( in hexadecimal )

Explanation:

Converting the given hexadecimal numbers to decimal:

 67 (HEX) = 16*6 + 7 = 103 (Decimal)

 2A (HEX) = 2*16 + 10 = 42 (Decimal)

Subtracting the two numbers: 103 - 42 = 61 (Decimal)

Converting the result to Hexadecimal format:

61 = 16* 3 + 13

13 corresponds to D in hexadecimal.

So result in hex is 3D.

To summarize, the subtraction result for the two given hexadecimal numbers is 61 in decimal format or 3D in hexadecimal.