jawab no 16-19 pakai cara yang jawab bakal di follback

16:
5/20 x 15= 5/4 x 3= 15/4= 3 ¾(C)

17:
1/5 x 10/4 x 8/16= abis tuh dicoret" hsilnya 1/4.(A)

18:
3/7 x 14/6=dicoret" hsilnya 1(C)

19:
4/10:12/8:8/3=4/10 x 8/12 x 3/8=1/10(B)