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afafgebrail
@afafgebrail
June 2021
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c'est urgent aidez moi svp
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winner123
Verified answer
A = 12/5 - 21/45 = 108/45 - 21/45 = 87/45 =
29/15
b = (2/3 -3) : 1/9
b = (2/3 - 9/3) : 1/9
b = - 7/3 x 9 = -63/3 =
-21
c = (2/3 - 3/2) : 7/11
c = ( 4/6 - 9/6) : 7/11
c = - 5/6 x 11/7 =
- 55/42
d = 1/3 +5/6 x 2/3
d = 1/3 +10/18
d = 6/18 +10/18 = 16/18 =
8/9
e = 2 - 5/2 x 4/15
e = 2 - 20/30
e ) 2 - 3/3
e = 6/3 - 3/3 = 3/3 =
1
f = ( 15/8 - 1/4) : ( 3/4 + 15/12)
f = ( 15/8 - 2/8) : ( 9/12 + 15/12)
f = 13/8 : 24/12
f = 13/8 x 12/24
f =13/8 x 1/12 =
13/96
Said mange 1/4, reste 3/4
Agathe mange : 2/3 x 3/4 = 6/12 ou 1/2
à tous les 2 ils ont mangé : 1/4 + 1/2 = 1/4 + 2/4 = 3/4 il reste 1/4
1/4 = 5 gâteaux
4/4 = 20 gâteaux
1 votes
Thanks 1
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Verified answer
A = 12/5 - 21/45 = 108/45 - 21/45 = 87/45 = 29/15b = (2/3 -3) : 1/9
b = (2/3 - 9/3) : 1/9
b = - 7/3 x 9 = -63/3 = -21
c = (2/3 - 3/2) : 7/11
c = ( 4/6 - 9/6) : 7/11
c = - 5/6 x 11/7 = - 55/42
d = 1/3 +5/6 x 2/3
d = 1/3 +10/18
d = 6/18 +10/18 = 16/18 = 8/9
e = 2 - 5/2 x 4/15
e = 2 - 20/30
e ) 2 - 3/3
e = 6/3 - 3/3 = 3/3 = 1
f = ( 15/8 - 1/4) : ( 3/4 + 15/12)
f = ( 15/8 - 2/8) : ( 9/12 + 15/12)
f = 13/8 : 24/12
f = 13/8 x 12/24
f =13/8 x 1/12 = 13/96
Said mange 1/4, reste 3/4
Agathe mange : 2/3 x 3/4 = 6/12 ou 1/2
à tous les 2 ils ont mangé : 1/4 + 1/2 = 1/4 + 2/4 = 3/4 il reste 1/4
1/4 = 5 gâteaux
4/4 = 20 gâteaux