Princess Anna decides to make a birthday cake for Queen Elsa’s birthday! Anna, Olaf, Kristoff and Sven all add a different ingredient. When the cake mix has been combined, there is 1/4 of the flour left over, 1/3 of the butter, 1/2 of the sugar and 5/8 of the eggs. Anna used the most of her ingredient and Olaf used the least of his. Kristoff used more than Sven. Who used the sugar?