tolong batu ya sama jalannya

jawabnya kl ga salah D

80% x 0,5 : 1 1/3
=80/100 x 5/10 : 4/3
=8/25 x 1/1 :4/3
=8/25 :4/3
=8/25 x 3/4
=2/25 x 3/1
= 6/25
=0,8