Write this ratio as a fraction in lowest terms.

The ratio of 2 to 5

The ratio of 2 to 5 can be written as a fraction by placing 2 in the numerator (the top part of the fraction) and 5 in the denominator (the bottom part of the fraction). In lowest terms, this ratio as a fraction is:

2/5

Since 2 and 5 have no common factors other than 1, this fraction is already in its lowest terms.