A simple program to add the sum of three decimal numbers using C programming language.
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float a=12.45, b=3.13, c=21.24;
printf("\tAddition of Three Decimal Numbers in C");
add = (a+b+c);
printf("\tThe sum of %5.2f,%5.2f and %5.2f is %5.2f."
printf("\tEnd of Program");