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honorine007
@honorine007
January 2021
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bonsoir :)
j ai besoin de votre aide pour des calculs :/
pour certains facile pour moi horrible je n y arrive pas .................... merci pour votre aide ou vos explications.
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trudelmichel
Verified answer
Bonjour,
A=5/7-(3/2-5/4)
3/2-5/4=
3/2=3x2/2x2=6/4
3/2-5/4=6/4-5/4=1/4
A=5/7-1/4
5/7=5x4/7x4=20/28
1/4=1x7/4x7=7/28
A=20/28-7/28
A=13/28
B=(5/8+-7/4)(-(-1/3-4/3)
5/8+-7/4=5/8-7/4
7/4=7x2/4x2=14/8
5/8-14/8=-9/8
-1/3-4/3=-5/3
B=-9/8-(-5/3)
B=-9/8+5/3
-9/8=-9x3/8x3=-27/24
5/3=5x8/3x8=40/24
B=-27/24+40/24=13/24
2 votes
Thanks 1
calinizou
Verified answer
Bonsoir
a 5/7-(3/2-5/4)=tu fais déjà la parenthése (3/2-5/4)=6/4-5/4=1/4
5/7-1/4=20-7/28=13/28
b/(5/8+-7/4)=5-14/8=-9/8
-1/3-4/3=-5/3
-9/8+5/3=-27+40/24=13/24
1 votes
Thanks 1
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au secours ......... :/ merci d avance !!! !
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honorine007
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bonsoir!!! vraiment besoin d aide !! merci beaucoup !!
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honorine007
January 2021 | 0 Respostas
bonsoir :) au secours!!!! help merci!!!
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honorine007
January 2021 | 0 Respostas
Bonsoir, Besoin d aide pour cet exercice :) merci beaucoup !!!
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Lista de comentários
Verified answer
Bonjour,A=5/7-(3/2-5/4)
3/2-5/4=
3/2=3x2/2x2=6/4
3/2-5/4=6/4-5/4=1/4
A=5/7-1/4
5/7=5x4/7x4=20/28
1/4=1x7/4x7=7/28
A=20/28-7/28
A=13/28
B=(5/8+-7/4)(-(-1/3-4/3)
5/8+-7/4=5/8-7/4
7/4=7x2/4x2=14/8
5/8-14/8=-9/8
-1/3-4/3=-5/3
B=-9/8-(-5/3)
B=-9/8+5/3
-9/8=-9x3/8x3=-27/24
5/3=5x8/3x8=40/24
B=-27/24+40/24=13/24
Verified answer
Bonsoira 5/7-(3/2-5/4)=tu fais déjà la parenthése (3/2-5/4)=6/4-5/4=1/4
5/7-1/4=20-7/28=13/28
b/(5/8+-7/4)=5-14/8=-9/8
-1/3-4/3=-5/3
-9/8+5/3=-27+40/24=13/24