4 1 _ + _ 5 10 _______ Calculez.. 7 2 _ - _ 2 7
Mathématiques
Emmonna
Question
4 1
_ + _
5 10
_______ Calculez..
7 2
_ - _
2 7
_ + _
5 10
_______ Calculez..
7 2
_ - _
2 7
2 Réponse
-
1. Réponse maudmarine
4/5 + 1/10
7/2 - 2/7
= 4 x 2 / 5 x 2 + 1/10___
7 x 7 / 2 x 7 - 2 x 2 / 7 x 2
= 5/10 + 1/10
49/14 - 4/14
= 6/10 : 45/14
= 6/10 x 14/45
= 84/450
= 6 x 14 / 6 x 75
= 14/75 -
2. Réponse ssaaddia
4/5+1/10=8/10+1/10
=9/10
7/2-2/7
=49/14-4/14
=45/14
9/10x14/45
=126/450