Question

resolva expressões a seguir?a)6/5-3/4+1/10= b)4/9+1/3-2/3=

Answer 1

a) 6/5 - 3/4 + 1/10 =
MMC de 5,4 e 10 = 20
6/5/4 - 3/4/5 + 1/10/2
24/20 - 15/20 + 2/20 = 11/20

b) 4/9 + 1/3 - 2/3
MMC de 9 e 3 = 9
4/9/1 + 1/3/3 - 2/3/3
4/9 + 3/9 - 6/9 = 1/9