HelpMMari8znicaf HelpMMari8znicaf

15-08-2016
Mathematics

contestada

what is 3 1 / 7 plus 2 1 / 2

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dalendrk dalendrk

16-08-2016

[tex]3\dfrac{1}{7}+2\dfrac{1}{2}=3\dfrac{1\cdot2}{7\cdot2}+2\dfrac{1\cdot7}{2\cdot7}=3\dfrac{2}{14}+2\dfrac{7}{14}=(3+2)+\dfrac{2+7}{14}=\boxed{5\frac{9}{14}}[/tex]

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MrMelendez MrMelendez

13-10-2020

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