04-01-2015
Mathematics

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what is 7 7/8- 31/4 simplified

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crisforp crisforp

04-01-2015

7 7/8 = 63/ 8 ;
31/ 4 = 62/ 8 ;
63 / 8 - 62 / 8 = 1 / 8 .

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Аноним Аноним

04-01-2015

[tex]7\frac{7}{8}-\frac{31}{4}=7\frac{7}{8}-\frac{28+3}{4}=7\frac{7}{8}-7\frac{3}{4}=7\frac{7}{8}-7\frac{3\cdot2}{4\cdot2}=7\frac{7}{8}-7\frac{6}{8}=\boxed{\frac{1}{8}}[/tex]

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