Besoin d' aide merci d' avance. a ) 3/2 × 5/7 b) - 4/11 × 1 - 3 c)3× - 7/5 d) 5/ - 4 × 5/ - 2 e) 8/17 × 5 - 3 f) 13 / - 5 × ( -2 /11) g)
Mathématiques
moumoune25
Question
Besoin d' aide merci d' avance.
a ) 3/2 × 5/7 b) - 4/11 × 1 - 3 c)3× - 7/5
d) 5/ - 4 × 5/ - 2 e) 8/17 × 5 - 3 f) 13 / - 5 × ( -2 /11) g) (- 7/15) × (- 8 )× 2/3 h) - 1/2 × 5/4 × - 3/2
a ) 3/2 × 5/7 b) - 4/11 × 1 - 3 c)3× - 7/5
d) 5/ - 4 × 5/ - 2 e) 8/17 × 5 - 3 f) 13 / - 5 × ( -2 /11) g) (- 7/15) × (- 8 )× 2/3 h) - 1/2 × 5/4 × - 3/2
1 Réponse
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1. Réponse telephone16
A = 3/2 X 5/7 = 15/14
B = -4/11 X 1 -3
-4/11 -3 = -4/11 -33/11 = -37/11
C = 3 X -7/5 = -21/5
D = 5/ - 4 X 5/ - 2 = 25/8
E = 8/17 X 5 - 3 = 40/17 -51/17 = -11/17
F = 13 / - 5 X ( -2 /11) = -26/-55 = +26/55
G = (- 7/15) X (- 8 ) X 2/3 =
+56/15 X 2/3 = 112/ 45
H = - 1/2 X 5/4 X - 3/2
-5/8 X -3/2 = +15/16