Calculer et donner le résultat des expressions sous la forme la plus simple. M = 2/5-4/3+7/2 N = 2/3-5/3×3/2 L = (-7/4 +1/2) ÷ (2/7+ 1/4)
Mathématiques
sophieguillan
Question
Calculer et donner le résultat des expressions sous la forme la plus simple.
M = 2/5-4/3+7/2 N = 2/3-5/3×3/2
L = (-7/4 +1/2) ÷ (2/7+ 1/4) P = 5/-21
M = 2/5-4/3+7/2 N = 2/3-5/3×3/2
L = (-7/4 +1/2) ÷ (2/7+ 1/4) P = 5/-21
1 Réponse
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1. Réponse droopette
M = 2/5-4/3+7/2 .
=12/30-40/30+105/30
=77/30
N = 2/3-5/3×3/2
=2/3-15/6
=4/6-15/6
=-11/6
L = (-7/4 +1/2) ÷ (2/7+ 1/4)
=(-7/4+2/4) : (8/28+7/28)
=-5/4 : 15/28
=-5/4 x 28/15
=- 7/3
P = 5/-21
=-5/21