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Sagot :

Bonjour,

A= 2/3-4/3x5/2

= 2/3 -20/6

= 2/3- 10/3

= -8/3

B= 5+(1+1/8)/3/4

5+(8/8 + 1/8) /3/4

= 5+9/8 *4/3

= 5+36/24

= 5+ 9/6

=5+ 3/2

= 10/2+3/2

= 13/2

C= (6/5)/(1/15-3/4)

= (6/5) / ( 4/60 - 45/60)

= (6/5)/ (-41/60)

= 6/5* -60/41

= -360/205

= - 72/41

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