Răspuns:
Explicație pas cu pas:
a)24 m si 12km
12km=12000m
24m/12000m=0,002
b)17 dm 1,7 hm
17 dm
1,7hm=170dm
17dm/170dm=0,1
c)25 1/2 m²=51/2 m²=25,5 m²
102 ha=102×10000m²=1020000m²
25,5 m²/1020000m²=0,000025
d)2,(3)dm³=2 1/3 dm³=7/3 dm³
0,(3)m³=3/9m³=1/3m³=1000/3dm³
7/3:1000/3=0,007
e) 3h si 20' 1h si 40'
3×60=180'
180'+20'=200'
60'+40'=100'
200/100=2
