What is 3.8 as a fraction in simplest form?

Ineed to learn how to solve this problem

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3