To bake a chocolate cake jenny uses 1 cup of sugar for every 2 cups of flour.

What is the ratio of sugar and flour used in the cake.
What is the fraction of sugar and flour used in the cake.

The ratio of sugar to flour used in the cake is 1:2 (1 cup of sugar for every 2 cups of flour).

To express this ratio as a fraction, we can write it as 1/2 (1 cup of sugar for every 2 cups of flour).