Question

(ii) Express the rational number 1/13 in decimal form and hence find the
decimal expansion of 3/13,4/13 and 5/13.
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Answer 1

• divide 1 by 13 to get 0.(076923) in repeating form
• 2/13 can be written as 2(1/13)
• so multiple decimal form of 1/13 from 2 to get 0.(153846) in repeating form.
• get a calculator and do other fractions.
• 3/13=0.(230769)
• 4/13=0.(307692)
• 5/13=0.(384615)