2.75-(-1/2)+(-5/6)-(-0.375)-14/3

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2.75-(-1/2)+(-5/6)-(-0.375)-14/3
=11/4+1/2-5/6+3/8-28/6
=26/8+3/8-33/6
=29/8-33/6
=87/24-132/24
=-45/24
=-15/8