Question

Stefan is decorating a rectangular cake. He will put blue icing on the top three-fourths of the cake, as shown in this model. He will put red dots on the left one-fifth of the cake, as shown in this model. What fraction of the cake will have both blue icing and red dots? .

Answer 1

The fraction of the cake that will have both blue icing and red dots is one-fifth. This is because the red dots will be on the left one-fifth of the cake and the blue icing will cover the top three-fourths of the cake, which includes the left one-fifth. Therefore, one-fifth of the cake will have both blue icing and red dots.