Bonsoir j’ai besoin d’aide svp.... Pergunta de ideia deMzellePrinchess

MzellePrinchess @MzellePrinchess

May 2019 1 69 Report

Bonsoir j’ai besoin d’aide svp

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loulakar

Verified answer

Bonsoir,

$A = \frac{3}{7} + \frac{4}{21} - \frac{5}{2}$

$A = \frac{18}{42} + \frac{8}{42} - \frac{105}{42}$
$A = \frac{18 + 8 - 105}{42}$
$A = \frac{-79}{42}$

$E = \frac{1 + \frac{1}{8}}{\frac{3}{4}}$
$E = \frac{\frac{8}{8} + \frac{1}{8}}{\frac{3}{4}}$
$E = \frac{9}{8} \times \frac{4}{3}$
$E = \frac{9}{3} \times \frac{4}{8}$
$E = 3 \times \frac{1}{2}$
$E = \frac{3}{2}$

Je te laisse essayer de faire les autres

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