aider moi svp a- 9/8 x 16/27 = b- 4/3 x 12/28 = c- -7/25 x (-15/14) = d- 5/8 x 8/5 = e- 3/-4 x (-16/5) = f- (-1/4) x 40/5 =
Mathématiques
presylia14100
Question
aider moi svp
a- 9/8 x 16/27 =
b- 4/3 x 12/28 =
c- -7/25 x (-15/14) =
d- 5/8 x 8/5 =
e- 3/-4 x (-16/5) =
f- (-1/4) x 40/5 =
a- 9/8 x 16/27 =
b- 4/3 x 12/28 =
c- -7/25 x (-15/14) =
d- 5/8 x 8/5 =
e- 3/-4 x (-16/5) =
f- (-1/4) x 40/5 =
1 Réponse
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1. Réponse nonotata
a- 9/8 x 16/27
9/8 x 8*2/9*3
=2/3
b- 4/3 x 12/28
= 4/3 x 4x3 /4*7
= 4/3 x 3/7
= 4/7
c- -7/25 x (-15/14) =
= -7/5*5 x -5*3 /7*2
=-1/5 x -3/2
= + 3/10
d- 5/8 x 8/5
= 1
e- 3/-4 x (-16/5)
= -3/4 x 4*4/5
= -3 x 4/5
= -12/5
f- (-1/4) x 40/5 =
-1/4 x 8
=-8/4
=-2