1.4/10+4,75+9/20 2.5/12+7/18 3.7 10/12-3 1/3 4.1%,56+1,35+481 5.ubahlah ke bentuk persen A.7/20 B.0,7 6.ubahlah ke bentuk pecahan paling sederhana A.2,8 B.20% 7

1.4/10+4,3/4+9/20=4+(4/10+3/4+9/20)=4+(8/20+15/20+9/20)=4+32/20=4 32/20=5 12/20=5 3/5
2.15/36+14/36=19/36
3.(7-3)+(10/12-1/3)
4+(10/12-4/12)=4+6/12=4 1/2
4.?? gatau
5.a.35%
b.70%
6.a.2 4/5
b.1/5
7.53%
8.5/21-3/21=2/21
9.2/50+6/50-25/50=
10.13,6+108,795=122,395