gistfile1.rb

print "Fat: "
fat = gets.strip

print "Protein: "
protein = gets.strip

print "Carbohydrates: "
carbs = gets.strip

fat_calories = fat.to_f*9
carb_calories = carbs.to_f*4
protein_calories = protein.to_f*4
total_calories = fat_calories + carb_calories + protein_calories

fat_portion     = ((fat_calories/total_calories) * 100).truncate
protein_portion = ((protein_calories/total_calories) * 100).truncate
carb_portion    = ((carb_calories/total_calories) * 100).truncate

output = ""
output << "Total Calories: #{total_calories}"
output << "\n\n"
output << "Fat/Protein/Carb ratio: #{fat_portion}%/#{protein_portion}%/#{carb_portion}%"
puts output