Bonjour j’ai un exercice de math à faire pouvez vous m’aider svp je doit tout développer au maximum

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MAUDMARINE MAUDMARINE · Answer 1 · 2021-11-21T14:12:00+01:00

Bonjour

A = - 14/5 + - 4/33 x - 11/20

A = - 14/5 + 44/660

A = (- 14 x 3) / (5x 3) + (44 x 1) / (44 x 15)

A = - 42/15 + 1/15

A = - 41/15

B = - 15/14 + 4/3 : - 1/3

B = - 15/14 + 4/3 x - 3

B = - 15/14 - 12/3

D = (- 15 x 3) / (14 x 3) - (12 x 14) / (3 x 14)

D = - 45/42 - 168/42

D = - 213/42

D = (3 x - 71) / (3 x 14)

D = - 71/14

C = 7/18 - 5/4 : 15/28

C = 7/18 - 5/4 x 28/15

C = 7/18 - 140/60

C = 7/18 - (20 x 7) / (20 x 3)

C = 7/18 - 7/3

C = 7/18 - (7 x 6) / (3 x 6)

C = 7/18 - 42/18

C = - 35/18

D = - 3/7 + - 9/14 : 9/16

D = - 3/4 - 9/14 x 16/9

D = - 3/4 - 144/126

D = - 3/4 - (18 x 8) / (18 x 7)

D = - 3/4 - 8/7

D = (- 3 x 7) / (4 x 7) - (8 x 4) / (7 x 4)

D = - 21/28 - 32/28

D = - 53/28