Mr. Li used the computer to input an article. After 3 hours, he entered 1 / 3 of this article. At this speed, Mr. Li worked 8 hours and could input this article A few parts of the article

Mr. Li used the computer to input an article. After 3 hours, he entered 1 / 3 of this article. At this speed, Mr. Li worked 8 hours and could input this article A few parts of the article

eight-ninths