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Sagot :

bjr

A = (14/6 -3/9) * -3/4

= (7/3 - 1/3 ) * - 3/4

= 6/3 * - 3/4

= -6/4

= -3/2

B = -11/15 -3/25÷ 9/25

= -11/15 -3/25 * 25/9

= -11/15 -3/9

= -16/15

Bonjour,

A)

14/6 - 3/9 = 42 /18 - 6/18 =36/18 =2

2*-3/4 = -6/4 = -3/2

B)

(3/25 )/ (9/35) =

(3*35)/ (25* 9) = 105/225 = 21/ 45 = 7/15

-11/15 - 7/15 = -18/ 15  = - 6/5

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