Simplify 3/5 + [ ( -1/-2 + 7/-8) ] + [ ( -3/2 ) ] = ?
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=3/5 + [(-1/-2 + 7/-8)] + [(-3/2)]
=3/5 +[(1/2 -7/8)] - 3/2
=3/5 + [(4 - 7)/8] - 3/2
=3/5 - 3/8 - 3/2
=(24 - 15 - 60)/40
= -51/40
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