(7/9-5/6+1/8)*18-1.45*6+39.5*6

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(7/9-5/6+1/8)*18-1.45*6+39.5*6

(7/9-5/6+1/8)*18-1.45*6+39.5*6
=(7/9)*18-(5/6)*18+(1/8)*18+(39.5-1.45)*6
=14-15+2.25+38.05*6
=1.25+228.3
=229.55