Answer
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Hint: If the factors of denominator of the given rational number is of form \[{{2}^{n}}{{5}^{m}}\] ,where \[n,m\] are non-negative integers, then the decimal expansion of the rational number is terminating otherwise non terminating recurring.
Complete step-by-step answer:
According to Euclid’s Division Lemma if we have two positive integers a and b, then there exist unique integers \[q\] and \[r\] which satisfies the condition \[a=bq+r\] where \[0~\le \text{ }r\text{ }<\text{ }b\] .
\[\Rightarrow \dfrac{51}{150}\]
\[=\dfrac{3\times 17}{3\times 5\times 2\times 5}\]
\[=\dfrac{17}{{{2}^{1}}\times {{5}^{2}}}\]
\[=\dfrac{17\times 2}{{{2}^{2}}\times {{5}^{2}}}\]
\[=\dfrac{34}{{{(2\times 5)}^{2}}}\]
\[=\dfrac{34}{{{10}^{2}}}\]
\[=\dfrac{34}{100}\]
\[=0.34\]
Hence it will terminate after two places of decimal.
According to Euclid lemma if we have two positive integers a and b, then there exist unique integers \[q\] and \[r\] which satisfies the condition \[a=bq+r\] where \[0~\le \text{ }r\text{ }<\text{ }b\] ,
Hence, the value of r will be between zero and b i.e. \[0~\le \text{ }r\text{ }<\text{ }b\].
Note: The rational number for which the long division terminates after a finite number of steps is known as terminating decimal. The rational number for which the long division does not terminate after any number of steps is known as non-terminating decimal. A repeating decimal or recurring decimal is a decimal representation of a number whose digits are periodic (repeating its values at regular intervals) and the infinitely repeated portion is not zero. A non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly. Decimals of this type cannot be represented as fractions, and as a result are irrational numbers.
Complete step-by-step answer:
According to Euclid’s Division Lemma if we have two positive integers a and b, then there exist unique integers \[q\] and \[r\] which satisfies the condition \[a=bq+r\] where \[0~\le \text{ }r\text{ }<\text{ }b\] .
\[\Rightarrow \dfrac{51}{150}\]
\[=\dfrac{3\times 17}{3\times 5\times 2\times 5}\]
\[=\dfrac{17}{{{2}^{1}}\times {{5}^{2}}}\]
\[=\dfrac{17\times 2}{{{2}^{2}}\times {{5}^{2}}}\]
\[=\dfrac{34}{{{(2\times 5)}^{2}}}\]
\[=\dfrac{34}{{{10}^{2}}}\]
\[=\dfrac{34}{100}\]
\[=0.34\]
Hence it will terminate after two places of decimal.
According to Euclid lemma if we have two positive integers a and b, then there exist unique integers \[q\] and \[r\] which satisfies the condition \[a=bq+r\] where \[0~\le \text{ }r\text{ }<\text{ }b\] ,
Hence, the value of r will be between zero and b i.e. \[0~\le \text{ }r\text{ }<\text{ }b\].
Note: The rational number for which the long division terminates after a finite number of steps is known as terminating decimal. The rational number for which the long division does not terminate after any number of steps is known as non-terminating decimal. A repeating decimal or recurring decimal is a decimal representation of a number whose digits are periodic (repeating its values at regular intervals) and the infinitely repeated portion is not zero. A non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly. Decimals of this type cannot be represented as fractions, and as a result are irrational numbers.
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