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19 March, 23:03

The common denominator of 1/11 and 1/9 is ..., The sum of 1/11 and 1/9 is 20/99. The difference of 1/9 and 1/11 is ..., 21/99 is equal to the fraction ..., 0.2 expressed as a percentage is ...

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  1. 20 March, 00:36
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    The common denominator of 1/11 and 1/9 is 99; the sum of 1/11 and 1/9 is 20/99; the difference of 1/9 and 1/11 is 2/99; 21/99 is equal to the fraction 7/33; 0.2 expressed as a percentage is 20%
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