5,4+3/2+3/4-0,9 berapa hasil penjumlahan tersebut

5,4 + 3/2 + 3/4 - 0,9
= 54/10 + 3/2 + 3/4 - 9/10
= 108/20 + 30/20 + 15/20 - 18/20
= 138/20 + 15/20 - 18/20
= 153/20
= 135/20
= 27/4
pecahan campuran nya
= 6 3/4
desimal
27/4
= 675/100
= 6,75

3/2=1,5
3/4=0,75

5,4
1,5
0,75
0,9
_____+
8,55