81 1/4 - 125 1/3 + 4 3/2 Tolong dibantu ya jawabannya,terimakasih

81 1/4 - 125 1/3+ 4 3/2
=81 3/12 - 125 4/12 + 4 18/12
=81-125+4 (3/12-4/12+18/12)
=-40 17/12


maaf kalau salah

325/4 - 376/3 + 11/2
= 975 /12 - 1504/12 + 66/12
= -463 /12
= - 38,6