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Sagot :

Bonsoir,

( 2/3 - 3/2 ) × ( 1/3 - 2/15 )

( 2/3 - 3/2 ) = 4/6 - 9/6 = -5/6

( 1/3 - 2/15 ) = 5/15 -2/15 = 3/15

-5/6 * 3/15 = -15/ 90 = -3/30 = -1/10

2 × 5/7 - 23/14

2*5/7 = 10/7

10/7 - 23/14 = 20/14 -23/14 = -3/14

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