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Python Program to add two hexadecimal numbers

  • Last Updated : 26 Nov, 2020

Given two hexadecimal numbers, write a Python program to compute their sum.

Examples:

Input: a = “01B”, b = “378”
Output: 393
Explanation:
B (11 in decimal) + 8 = 19 (13 in hex), hence addition bit = 3, carry = 1
1 + 7 + 1 (carry) = 9, hence addition bit = 9, carry = 0
0 + 3 + 0 (carry) = 3, hence addition bit = 3, carry = 0
01B + 378 = 393

Input: a = “AD”, b = “1B”
Output: C8
Explanation:
D(13 in Dec) + B(11 in Dec) = 24(18 in hex), hence addition bit = 8, carry = 1
A(10 in Dec) + 1 + 1 (carry)= 12 (C in hex), addition bit = C carry = 0
AD + 1B = C8

Approach:



To add two hexadecimal values in python we will first convert them into decimal values then add them and then finally again convert them to a hexadecimal value. To convert the numbers we will make use of the hex() function The hex() function is one of the built-in functions in Python3, which is used to convert an integer number into its corresponding hexadecimal form. We will also use the int() function to convert the number to decimal form. The int() function in Python and Python3 converts a number in the given base to decimal.

Below are the implementations based on the above approach:

Example 1:

Python3




# Python program to add two hexadecimal numbers.
  
# Driver code
# Declaring the variables
a = "01B"
b = "378"
  
# Calculating hexadecimal value using function
sum = hex(int(a, 16) + int(b, 16))
  
# Printing result
print(sum[2:])

Output:

393

Example 2:

Python3




# Python program to add two hexadecimal numbers.
  
# Driver code
# Declaring the variables
a = "B"
b = "C"
  
# Calculating hexadecimal value using function
sum = hex(int(a, 16) + int(b, 16))
  
# Printing result
print(sum[2:])

Output:

17

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