Question

Resolva as operações com os números reais: a) 4/5 - 3/5 + 1/5= b) 1/2 + 3/5 + 2/3=

Answer 1

a) 4/5 - 3/5 = 1/5, 1/5 + 1/5 = 2/5

b) 1/2 + 3/5 + 2/3 = 
2x5x3 = 30

(15 + 18 + 20)/30 =
53/30

Answer 2

letra a

4/5 menos 3/5+1/5=2/5

letra b

1/2+3/5+2/3

15/30+18/30+20/30=53/30