AIDEZ MOI SVP !!!! Sachant que a = 2/21 et b = 5/7. Tu donneras les résultats sous forme de fraction irréductibles. 1) Calculer a/b et a x b. 2) Calculer a = b et a -b.

Question

Grade: Education Subject: mathematiques

AIDEZ MOI SVP !!!!

Sachant que a = 2/21 et b = 5/7. Tu donneras les résultats sous forme de fraction irréductibles.

1) Calculer a/b et a x b.

2) Calculer a = b et a -b.

Asked by: USER6186

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Answer (204)

USER3974

Best Answer

(221)

1) Calculer a/b et a x b.
a/b=(2/21)/(5/7)=2/21*7/5=14/105=2/15
ab=2/21*5/7=10/147

2) Calculer a = b et a -b.
a+b=2/21+5/7=2/21+15/21=17/21
a-b)2/21-5/7=2/21-15/21=-13/21

Answered on 27 Agustus 2025

USER4928

(538)

Sachant que a = 2/21 et b = 5/7. Tu donneras les résultats sous forme de fraction irréductibles.

1) Calculer a/b et a x b.

a/b = 2/21 : 5/7 = 2/21 x 7/5 = 14/105 = 7 x 2 / 7 x 15 = 2/15

a x b = 2/21 x 5/7 = 10/147

2) Calculer a = b et a -b.

a + b = 2/21 + 5/7 = 2/21 + 5 x 3 / 7 x 3 = 2/21 + 15/21 = 17/21

a - b = 2/21 - 5/7 = 2/21 - 15/21 = - 12/21 = 3 x - 4 / 3 x 7 = - 4/7

Answered on 27 Agustus 2025

AIDEZ MOI SVP !!!! Sachant que a = 2/21 et b = 5/7. Tu donneras les résultats sous forme de fraction irréductibles. 1) Calculer a/b et a x b. 2) Calculer a = b et a -b.

Question

Answer (204)

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AIDEZ MOI SVP !!!!

Sachant que a = 2/21 et b = 5/7. Tu donneras les résultats sous forme de fraction irréductibles.

1) Calculer a/b et a x b.

2) Calculer a = b et a -b.

Construieste o fraza in care sa existe o subordonata circumstantiala de cauza introdusa de conjunctia "fiindca"

REPEDE VA ROOG!! mersi^.^

|√6-2√3|
ajutati va rog:(

Which aspect of gothic literature do the first four chapters of Frankenstein's most clearly show?
A intellectual aspect of life
B Exotic setting
C psychological terror
D A first- person narrative