Question

Me ajudem nessa por favor?

Answer 1

Boa tarde,

a = 2/5 + 1/6 = 12/30 + 5/30 = 17/30

b = 2/7 + 1/3 = 6/21 + 7/21 = 13/21

c = 7/12 + 3/6 + 1/2 = 7/12 + 6/12 + 6/ 12 = 19/12

d = 5/6 + 1/3 + 7/9 = 15/18 + 6/18 + 14/18 = 35/18

Espero ter ajudado :)