Effectuer les calculs fractionnaires en simplifiant les résultats. 50 pour-cent. (1/2-1/8) multiplier 4/3. 5/3 multiplier (1/10+1/5) (1-3/10) multiplier ( 1-2/7
Mathématiques
Rebeccadu97
Question
Effectuer les calculs fractionnaires en simplifiant les résultats.
50 pour-cent.
(1/2-1/8) multiplier 4/3.
5/3 multiplier (1/10+1/5)
(1-3/10) multiplier ( 1-2/7)
1-3/4 multiplier 2/3.
210:420.
9/36.
8/32.
50 pour-cent.
(1/2-1/8) multiplier 4/3.
5/3 multiplier (1/10+1/5)
(1-3/10) multiplier ( 1-2/7)
1-3/4 multiplier 2/3.
210:420.
9/36.
8/32.
2 Réponse
-
1. Réponse winner123
bonjour
50/100 = 1/2
( 4/8 - 1/8) x 4/3 = 3/8 x 4/3 = 12/24 = 1/2
5/3 x ( 1/10 + 2/10) = 5/3 x 3/10 = 15/30 = 1/2
( 10/10 - 3/10) x (7/7 - 2/7) = 7/10 x 5/7 = 35/70 = 1/2
210/420 = 1/2
9/36 = 1/4
8/32 = 1/4 -
2. Réponse maudmarine
50 % = 50/100 = 1/2
(1/2 - 1/8) x 4/3
= (1 x 4 / 2 x 4 - 1/8) x 4/3
= (4/8 - 1/8) x 4/3
= 3/8 x 4/3
= 12/24
= 12 x 1 / 12 x 2
= 1/2
5/3 x (1/10 + 1/5)
= 5/3 x (1/10 + 1 x 2 / 5 x 2)
= 5/3 x (1/10 + 2/10)
= 5/3 x 3/10
= 15/30
= 15 x 1 / 15 x 2
= 1/2
(1 - 3/10) x (1 - 2/7)
= (1 x 10 / 3 x 10 - 3/10) x (1 x 7/ 1 x 7 - 2/7)
= (10/10 - 30/10) x (7/7 - 2/7)
= 7/10 x 5/7
= 35/70
= 35 x 1 / 35 x 2
= 1/2
1 - 3/4 x 2/3
= 1 - 6/12
= 1 x 12 / 1 x 12 - 6/12
= 12/12 - 6/12
= 6/12
= 6 x 1 / 6 x 2
= 1/2
210/420
= 210 x 1 / 210 x 2
= 1/2
9/36
= 9 x 1 / 9 x 4
= 1/4
8/32
= 8 x 1 / 8 x 4
= 1/4