Răspuns :
Pai daca 1kg are 1000 g
1 kg .............................1000 g
x kg.............................50 g
x=50*1/1000=50/1000=5/100=0,05 kg
1 kg .............................1000 g
x kg.............................50 g
x=50*1/1000=50/1000=5/100=0,05 kg