Bonjour
Rendre irréductible la fraction :
a^n/a^n = a^(n-n)
(2^3 x 5 x 11)/(2 x 3 x 5^2)
= 2^(3-1) x 5^(1-2) x 11/3
= 2^2 x 5^(-1) x 11/3
= 4 x 11 / (5 x 3)
= 44/15
(2^3 x 3^4 x 5^2 x 7)/(2^4 x 3^2 x 5^2 x 7^2)
= 2^(3-4) x 3^(4-2) x 5^(2-2) x 7^(1-2)
= 2^(-1) x 3^2 x 5^0 x 7^(-1)
= 1/2 x 9 x 1 x 1/7
= 9/(2 x 7)
= 9/14
