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x in (-oo:+oo)
(1/7)^196 = x // - x
(1/7)^196-x = 0
1/4357283753150502780099500046570934468895955247884312228217467756782642968523224594658218498504524802287823926802393300364041307931563344934673367041790844037749877601-x = 0 // - 1/4357283753150502780099500046570934468895955247884312228217467756782642968523224594658218498504524802287823926802393300364041307931563344934673367041790844037749877601
-x = -1/4357283753150502780099500046570934468895955247884312228217467756782642968523224594658218498504524802287823926802393300364041307931563344934673367041790844037749877601 // * -1
x = 1/4357283753150502780099500046570934468895955247884312228217467756782642968523224594658218498504524802287823926802393300364041307931563344934673367041790844037749877601
x = 1/4357283753150502780099500046570934468895955247884312228217467756782642968523224594658218498504524802287823926802393300364041307931563344934673367041790844037749877601
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