Question
Donner le résultat sous fraction irréductible :
M= 1/9 - 5/9 x 6/7
N= -5/7 - 8/-21
M= 1/9 - 5/9 x 6/7
N= -5/7 - 8/-21
Asked by: USER4969
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102 Answers
Answer (102)
M = 1/9 - 5/9 x 6/7
M = 1/9 - 30/63
M = 1 x 7 / 9 x 7 - 30/63
M = 7/63 - 30/63
M = - 23/63
N = -5/7 - 8/-21
N = - 5/7 + 8/21
N = - 5 x 3 / 7 x 3 + 8/21
N = - 15/21 + 8/21
N = - 7/21
N = 7 x - 1 / 7 x 3
N = - 1/3
M = 1/9 - 30/63
M = 1 x 7 / 9 x 7 - 30/63
M = 7/63 - 30/63
M = - 23/63
N = -5/7 - 8/-21
N = - 5/7 + 8/21
N = - 5 x 3 / 7 x 3 + 8/21
N = - 15/21 + 8/21
N = - 7/21
N = 7 x - 1 / 7 x 3
N = - 1/3