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Svp merxi d'avance les bros et les filles merci​

Svp Merxi Davance Les Bros Et Les Filles Merci class=

Sagot :

MAUDMARINE

Bonjour

a. 15/8 x 1/5 = 15/40 = (5 x 3) / (5 x 8) = 3/8

b. 9/17 x 34/5 = 306/85 = (17 x 18) / (17 x 5) = 18/5

c. 2/7 x 9/8 = 18/56 = (2 x 9) / (2 x 28) = 9/28

d. 8 x 7/64 = 56/64 = (8 x 7) / (8 x 8) = 7/8