Jawablah semua pertanyaan diatas! ​

4) 72/108 = 2/3

5) 17/20 = 0,85

6) 379/40 = 9 19/40

4.72/108

=(72:36)/(108:36)=2/3

5.17/20=(17×5)/(20×5)=85/100=0,85

6.379/40=9/19/40