3,21-60%+1 3/4 = 5 3/5 : 1/10 = 75% : 0,5 x 5/8 =

75/100 x 10/5 x 5/8 
=75/80
=15/16

caranya dijadikan desimal dulu agar lebih mudah

1. 3,21-0,60+1,75
= 4,36

2. 5,60 : 0,10
= 56

3. 0,75 : 0,5 x 0,625
= 25 x 0,625
=15,625