after running one quarter of a race, wally had to slow down. he ran another fifth of it, and he had to walk the rest of the way. what fraction of the race did wally walk?
after running one quarter of a race, wally had to slow down. he ran another fifth of it, and he had to walk the rest of the way. what fraction of the race did wally walk?
\(1-(\frac{1}{4}+\frac{1}{5})\\ =1-(\frac{5}{20}+\frac{4}{20})\\ =1-\frac{9}{20}\\ =\frac{11}{20}\\\)