Răspuns :
0,2 - 5/30 + 0,5=
2/10 - 5/30 + 5/10= aducem la acelasi numitor...30 =
6/30 - 5/30 + 15/30 = 16/30 = 0,5(3)
2/10 - 5/30 + 5/10= aducem la acelasi numitor...30 =
6/30 - 5/30 + 15/30 = 16/30 = 0,5(3)