Mr. smith is on a trip. on the first day he travelled 2/5 of the trip, and on the second day he travelled another 1/3. what fraction of thw trip did he travel in the first two days? what fraction of the trip is still reamining? pls show me the solution

What is the result of the following division?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches. approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Plzzz answer both questions and i will give you 100 points