Ineed ! i have to write about the swiss mathematician leonhard euler. it's an essay.

Leonhard Euler was a mathematician born in the 1700s. He discovered a formula that describes the shape of polyhedrons, which are three-dimensional solids with flat sides.   No matter what shape the polyhedron is, the formula always equals 2. Euler’s formula helps scientists Figure out how shapes are connected to each other and even with the shape of the universe might be.

Ratios are the same as fractions.

12:10 = 12/10

18:14 = 18/14

Divide.

12/10 = 1.2

18/14 = 1.2857

1.2857 > 1.2 ∴ 18/14 is greater

18/14 is your answer

hope this helps