Example 6 Show that 3.142678 is a rational number. In other words, express 3.142678 in the form 𝑝/𝑞 , where p and q are integers and q ≠ 0. 3.142678 = 3142678/1000000 , It is of the form 𝑝/𝑞 , where p = 3142678, q = 1000000 hence is a rational number.

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.