Taya20
Taya20
04-01-2015
Mathematics
contestada
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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