Question

calcule as expressões abaixo e simplifique o resultado se for possível!​

Answer 1

Resposta:

a) 2/3 + 5/6 = 4/6 + 5/6 = 9/6 = 3/2

b) 5/6 - 2/3 = 5/6 - 4/6 = 1/6

c) 2/3 + 5/4 = 8/12 + 15/12 = 23/12

d) 5/4 - 2/3 = 15/12 - 8/12 = 7/12

e) 2/3 + 5/4 + 1/5 = 40/60 + 75/60 + 12/60 = 127/60

f) 2/3 - 5/4 + 1/5 = 40/60 - 75/60 + 12/60= -23/60