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vivie59
@vivie59
January 2021
1
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bonjour pouvez vous m'aider pour mon exercice calculer et simplifier au maximum
9/10/27/5
7/9*9/11
(11/7+-11/5)/15/8
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indiennedu95
9/10 ÷ 27/5 = 9/10 × 5/27 = 9×5/10×27 = 45/270
= 1/6
7/9 × 9/11 = 7×9/9×11 =63/99
= 7/11
(11/7+-11/5)÷15/8 = (11×5/7×5 + -11×7/7×5)
÷ 15/8 = (55/35 + -77/35) ÷ 15/8
= -22/35 ÷ 15/8 = -22/35 × 8/15 = -22×8 / 35×15
= -176/525
J’espère t'avoir aider
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vivie59
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Lista de comentários
7/9 × 9/11 = 7×9/9×11 =63/99 = 7/11
(11/7+-11/5)÷15/8 = (11×5/7×5 + -11×7/7×5) ÷ 15/8 = (55/35 + -77/35) ÷ 15/8
= -22/35 ÷ 15/8 = -22/35 × 8/15 = -22×8 / 35×15= -176/525
J’espère t'avoir aider