Urgent svp Rendre les fractions suivantes irréductibles : 18sur24 120sur150 45sur63 357sur561 540sur288 630sur924 1540sur693 1080sur1260 merci bcp davance.

Bonsoir Bubblicious

[tex]\dfrac{18}{24}=\dfrac{6\times3}{6\times4}\\\\\boxed{\dfrac{18}{24}=\dfrac{3}{4}}\\\\\dfrac{120}{150}=\dfrac{30\times4}{30\times5}\\\\\boxed{\dfrac{120}{150}=\dfrac{4}{5}} \\\\\dfrac{45}{63}=\dfrac{9\times5}{9\times7}\\\\\boxed{\dfrac{45}{63}=\dfrac{5}{7}}[/tex]

[tex]\dfrac{357}{561}=\dfrac{51\times7}{51\times11}\\\\\boxed{\dfrac{357}{561}=\dfrac{7}{11}}\\\\\dfrac{540}{288}=\dfrac{36\times15}{36\times8}\\\\\boxed{\dfrac{540}{288}=\dfrac{15}{8}}[/tex]

[tex]\dfrac{630}{924}=\dfrac{42\times15}{42\times22}\\\\\boxed{\dfrac{630}{924}=\dfrac{15}{22}}\\\\ \dfrac{1540}{693}=\dfrac{77\times20}{77\times9}\\\\\boxed{\dfrac{1540}{693}=\dfrac{20}{9}}[/tex]

[tex]\dfrac{1080}{1260}=\dfrac{180\times6}{180\times7}\\\\\boxed{\dfrac{1080}{1260}=\dfrac{6}{7}}[/tex]