Fractions Question! Who had the longest pieces of string?

Question

Kim, Le, Mario, and Nina each had a string 10 ft long. Kim cuts hers in fifths, Le cuts his in fourths, Mario cuts his in sixths, and Nina cuts hers in thirds. Who had the longest pieces of string?

 

Help please? How do I solve this problem? 

Answer 1

Just consider each fraction

1/4, 1/6, 1/3

Which fraction is the largest? (How does its denominator compare to the others?)