The difference 7

The difference between a proper fraction and its reciprocal is 7/12. Find the fraction.

Correct answer:

x =  -3/4

Step-by-step explanation:

xx1 = 127 x21 = 127 x  12x27x12=0  12x27x12=0  a=12;b=7;c=12 D=b24ac=72412(12)=625 D>0  x1,2=2ab±D=247±625 x1,2=247±25 x1,2=0.291667±1.041667 x1=1.333333333 x2=0.75  <1 x1>1  x=x2=(0.75)=43=0.75  Verifying Solution:   w = xx1 w=4334=1291216=129+16=1270.5833

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