Question

Efetue as operações indicadas e faça as simplificações possíveis.
a) 5/9 + 2/9=
b) 3/8 + 1/8=
c) 4/5 - 3/5=
d) 7/12 - 5/12=
e) 4/16 + 5/16 + 3/16=
f) 17/20 - 9/20 - 3/20=​

Answer 1

Resposta:a) 5/9 + 2/9 = (5+2)/9 = 7/9

b) 3/8 + 1/8 = (3 + 1)/8 = 4/8 = 1/2

c) 4/5 - 3/5 = (4 - 3)/5 = 1/5

d) 7/12 - 5/12 = (7 - 5)/12 = 2/12 = 1/6

e) 4/16 + 5/16 + 3/16 = (4 + 5 + 3)/16 = 12/16 = 3/4

f) 17/20 - 9/20 - 3/20 = (17 - 9 - 3)/20 = 5/20 = 1/4

Espero ter ajudado