Declare double variables num1, den 1 , num 2 , and den2, and read each variable from input in that order. Find the sum of the fractions num 1/ den 1 and num 2/ den 2 and assign the result to sumFractions. The calculation is: sum =denun1+d1nun1 Ex: If the input is 4.01.03.55.0, the output is: 4.70 Note: Assume that den1 and den2 will not be 0