4/5+4/5+3/4+3/4=
2×4/5+2×3/4=
8/5+3/2=
(2×8+5×3)/10=
(16+15)/10=
31/10
<em>GH</em>
<em>Hi !</em>
<em>GH ∈ (HGY)</em>
<em>GH ∈ (GEF) } => (HGY) ∩ (GEF) = GH</em>
<em>Good luck !</em>
