exercice math viiitteeee 1sur3 +5sur6 x(2-7sur5

1/3 + 5/6 x (2 - 7/5)
= 1/3 + 5/6 x (2 x 5 / 1 x 5 - 7/5)
= 1/3 + 5/6 x (10/5 - 7/5)
= 1/3 + 5/6 x 3/5
= 1/3 + 15/30
= 1 x 10 / 3 x 10 + 15/30
= 10/30 + 15/30
= 25/30
= 5 x 5 / 5 x 6
= 5/6