1. a) 1.3=13/10
b) 0.5=1/2
c) 0.007=7/1000
d) 12.(36)=1224/99
e) 21.(8)=61/3
2. a) 1559/10=155.9
b) 68/1000=0.068
c) 15/4=3.75
d) 125/6=20.8(3)
3. a) x+5.6=35.8
x=30.2
b) x-13.2=25.4
x=38.6
