Question

Calculati:
(3/2+7/5+5/9)+(3/2+8/5+22/9)
As vrea sa stiu cu cat amplificati numitorii pentru a putea efectua calculul
Multumesc anticipat!!

Answer 1

(3×45+7×18+10×5)/90=
=(135+126+50)/90=311/90

(3×45+8×18+22×10)/90=
=(135+144+220)/90=
=499/90
311/90+499/90=311+499/90=
=810/90=81/9=9