Bonjour,
(1/3 - 2/3 x 15/8 + 7/12) / (1/5 - 7/2)
= [(1 x 8) / (3 x 8) - 30/24 + (7 x 2) / (12 x 2)] / [(1 x 2) / (5 x 2) - (7 x 5) / (2 x 5)]
= (8/24 - 30/24 + 14/24) / (2/10 - 35/10)
= - 8/24 : - 33/10
= - 8/24 x - 10/33
= 80/792
= (8 x 10) / (8 x 99)
= 10/99.
A=(1/3-2/3*15/8+7/13):(1/5-7/2)
A=-1/3:(-33/10)
A=1/3*10/33
A=10/99
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Bonjour,
(1/3 - 2/3 x 15/8 + 7/12) / (1/5 - 7/2)
= [(1 x 8) / (3 x 8) - 30/24 + (7 x 2) / (12 x 2)] / [(1 x 2) / (5 x 2) - (7 x 5) / (2 x 5)]
= (8/24 - 30/24 + 14/24) / (2/10 - 35/10)
= - 8/24 : - 33/10
= - 8/24 x - 10/33
= 80/792
= (8 x 10) / (8 x 99)
= 10/99.
Bonjour,
A=(1/3-2/3*15/8+7/13):(1/5-7/2)
A=-1/3:(-33/10)
A=1/3*10/33
A=10/99