(1,5+3/5)-60persen= tolong bantu

( 1,5 + 3/5 ) - 60%
=( 15/10 + 3/5) - 60/100
=( 15/10 + 6/10 ) - 60/100
= 21/10 - 60/100
= 210/100 - 60/100
= 150/100
Bisa disederhanakan menjadi 1 50/100 = 1 1/2