9/5 + (0,48 - 9/4) - 30% =

9/5 + (0,48 - 9/4) - 30%
= 9/5 + 48/100 - 9/4 - 30/100

kemudian samakan penyebutnya menjadi 100 :
• 9/5 = 180/100
• 9/4 = 225/100

= 9/5 + 48/100 - 9/4 - 30/100
= 180/100 + 48/100 - 225/100 - 30/100
= -27/100

dikoreksi lagi yaa

9/5 + (0,48 - 9/5) - 30% =
180/100 + (48/100 - 180/100) - 30/100 =
180/100 + (-132/100) - 30/100 =
18/100 = 0,18