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(1i4\20-2i5\20:1i1\8)²:26/25-2=(-1i1\20:1i1\8)²*25/26-2=(-21/20:9/8)²*25/26-2=
(-21/20*8/9)²*25/26-2=(-21/20*8/9)²*25/26-2=(-14/15)²*25/26-2=196/225*25/26-2=196/225*25/26-2=98/117-2=-1 19/117