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Sagot :

VINS

bonjour

B =  ( 20/10 - 3 /10 ) : 7 /5

B = 17/10 x 5 /7

B = 85/70 =  17/14

KIWIA

Bonjour,

2-(3/10)

B= _______

7/5

2/1 - 3/10

B= ________

7/5

20/10 - 3/10

B= _________

7/5

17/10

B= _____

7/5

B= 17/10 × 5/7

B= 17/10 × 10/14

B= 17×10/10×14

B= 17/14

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