Enter Number

Calculate the digit sum of 75

Calculate the reduced digit sum of 75

Add up 2 digits of 75:

Digit Sum → 7 + 5 = 12

Since our digit sum > 9:
repeat this process to get the reduced digit sum:
Our new number to evaluate is 12

Add up 2 digits of 12:

Digit Sum → 1 + 2 = 3

Since our digit sum ≤ 9:
we have our reduced digit sum

Final Answer


Digit Sum = 12
Reduced Digit Sum = 3