(7/9-5/6+3/18)*18-1.45*6+9.55*6

问题描述:

(7/9-5/6+3/18)*18-1.45*6+9.55*6

(7/9-5/6+3/18)*18-1.45*6+9.55*6
=(7/9)*18 - (5/6)*18+ (3/18)*18+(-1.45+9.55)*6
=14 - 15 +3 +8.1*6
=2+48.6
=50.6