1,8 + 50% + 1 1/4 senilai dengan#pake cara

1,8= 1 8/10 = 1 4/5 =9/5

50/100= 1/2

11/4

9/5+1/2+11/4=36/20+10/20+55/20=101/20=5 1/20 / 5+0,05=5,05