cant get answer now!!

https://www.symbolab.com/solver/step-by-step/%5Cleft%284%2F5%5Cright%29%5Cleft%289%2F5%5Cright%29%5Cleft%28-1%2F2%5Cright%29/?origin=enterkey

4/5=.8 9/5=1.8 -1/2=-.5 multiply all of these for a decimal answer or find common denomenator which would be 10 4/5=8/10 9/5=18/10 -1/2=-5/10

-18/25