Bonsoir;
On simplifie avant de faire les multiplications
a)
= 1/3* 1/2 = 1/6
b)
=14/9
c)
= 32/45
= 1- 20/10
= 1-2 = -1
(18/21 +4/21) *35/4
= 22/21*35/4
= 55/6
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Bonsoir;
On simplifie avant de faire les multiplications
a)
= 1/3* 1/2 = 1/6
b)
=14/9
c)
= 32/45
a)
= 1- 20/10
= 1-2 = -1
b)
(18/21 +4/21) *35/4
= 22/21*35/4
= 55/6