Write the following in decimal form and say what kind of decimal expansion each has :
(i) \(\frac{36}{100}\) (ii) \(\frac{1}{11}\) (iii) \(4\frac{1}{8}\)
(iv) \(\frac{3}{13}\) (v) \(\frac{2}{11}\) (vi) \(\frac{329}{400}\)
(i) \(\frac{36}{100}\)0 = 0.36
= Terminating
(ii) \(\frac{1}{11}\) = 0.090909 = 0.09
= Non-terminating repeating
(iii) \(4\frac{1}{8}\) = \(\frac{33}{8}\) = 4.125
= Terminating
(iv) \(\frac{3}{13}\)3 = 0.230769230769 = 0.230769
= Non-terminating repeating
(v) \(\frac{2}{11}\) = 0.18181818
= Non-terminating repeating
(vi) \(\frac{329}{400}\) = 0.8225
= Terminating.
Express the following in the form \(\frac{p }{ q}\) , where p and q are integers and q ≠ 0.
(i) 0.6(ii) 0.47 (iii) 0.001.
Classify the following numbers as rational or irrational :
(i) \(\sqrt23 \)
(ii) \(\sqrt225 \)
(iii) 0.3796
(iv) 7.478478...
(v) 1.101001000100001...