Bonsoir
2/3 - (6/5 + 2/9)
= 2/3 - [(6 x 9) / (5 x 9) + (2 x 5) / (9 x 5)]
= 2/3 - (54/45 + 10/45)
= 2/3 - 44/45
= (2 x 15) / (3x 15) - 44/45
= 30/45 - 44/45
= - 14/45.
