Réponse :
F = 12/5 + 3/5 × 7/9
12/5 + 21/45 on simplifie 21/45 = 7/15
12/5+7/15 on met sous denominateur 15
36/15+7/15 = 43/15
G = -2/3 × (4/5 - -3/20)
-2/3*(4/5+3/20) tu as -(-3/20) il devient +3/20
-2/3 *19/20 =
-38/60 =-19/30
H = 5/3 - 5/7 × (2 + 1/3)
5/3-5/7*7/3 =
5/3-35/21 on simplifie 35/21 = 5/3
5/3-5/3 = 0
I = 7/6 ÷ 5/9
7/6*9/5 =
63/30 =21/10
J = (2 + 4/5 - 7/10) × (7/2 - 3/5)
(20+8-7)/10 *(35/10-6/10)=
21/10*29/10=
609/100
Explications étape par étape
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Réponse :
F = 12/5 + 3/5 × 7/9
12/5 + 21/45 on simplifie 21/45 = 7/15
12/5+7/15 on met sous denominateur 15
36/15+7/15 = 43/15
G = -2/3 × (4/5 - -3/20)
-2/3*(4/5+3/20) tu as -(-3/20) il devient +3/20
-2/3 *19/20 =
-38/60 =-19/30
H = 5/3 - 5/7 × (2 + 1/3)
5/3-5/7*7/3 =
5/3-35/21 on simplifie 35/21 = 5/3
5/3-5/3 = 0
I = 7/6 ÷ 5/9
7/6*9/5 =
63/30 =21/10
J = (2 + 4/5 - 7/10) × (7/2 - 3/5)
(20+8-7)/10 *(35/10-6/10)=
21/10*29/10=
609/100
Explications étape par étape