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Sagot :

Bonsoir,

A =-4/3+-5/4+1

= -16-15+12/12

= - 19/12

= - 1,583

B = - 7/3x5/-8-1/2

= 35/24-1/2

= 23/24

= 0,9583

C = 4/-5:24/15-1/2x-1/3

= - 4/5x15/24+1/6

= - 3/6+1/6

= - 1/2+1/6

= - 1/3

= - 0,3

Voilà, les 3 premiers calculs.

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