18/20+50%+2,5 tolong dijawab

9/10+1/2+5/2=
9/10+5/10+25/10
=39/10

18/20 + 50 persen + 2,5

=18/20 + 50/100 +25/10

=90/100 + 50/100 + 250/100

=390/100

=39/10

3 9/10

semoga membantu