What is 7 7/8- 31/4 simplified

asked Mar 12, 2016 200k views

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4 votes

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

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3 votes

$7(7)/(8)-(31)/(4)=7(7)/(8)-(28+3)/(4)=7(7)/(8)-7(3)/(4)=7(7)/(8)-7(3\cdot2)/(4\cdot2)=7(7)/(8)-7(6)/(8)=\boxed{(1)/(8)}$

Stefanz answered Mar 16, 2016

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