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Sagot :

INEQUATION

Bonjour,

Calculer:

4/11+2= (4 + 2x11)/11= (4+22)/11= 26/11

-8/91-1/7= (-8 - 1x13)/91= -21/91= - 3/13      **simplifié par 7

5/2+45/4+2/8= (5x4+45x2+2)/8= (20+90+2)/8= 112/8= 14   **DC= 8

4+5/49-8/7= (4x49+5-8x7)/49= (196+5-56)/49= 145/49    ** DC= 49

LOULAKAR

Réponse :

Explications étape par étape

Bonjour

4/11 + 2

= 4/11 + (2 x 11)/11

= 4/11 + 22/11

= 26/11

8/-91 + (-1/7)

= -8/91 - 1/7

= -8/91 - (1 x 13)/(7 x 13)

= -8/91 - 13/91

= -21/91

= (-7 x 3)/(7 x 13)

= -3/13

5/2 - (-45/4) + 2/8

= (5 x 4)/(2 x 4) + (45 x 2)/(4 x 2) + 2/8

= 20/8 + 90/8 + 2/8

= 112/8

= (8 x 14)/8

= 14

4 - 5/-49 + (-8/7)

= (4 x 49)/49 + 5/49 - (8 x 7)/(7 x 7)

= 196/49 + 5/49 - 56/49

= 145/49

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