76000*90/1000-96(48/8)*109-5400/600=-55953
1. 76000*90=6840000
2. 6840000/1000=6840
3. 96*48=4608
4. 4608/8=576
5. 576*109=62784
6. 6840-62784=-55944
7. 5400/600=9
8. -55944-9=-55953
(154800/10/9-47*6)*(97840/80+77)=1869400
1. 154800/10=15480
2. 15480/9=1720
3. 47*6=282
4. 1720-282=1438
5. 97840/80=1223
6. 1223+77=1300
7. 1438*1300=1869400