Sagot :
Réponse :
Explications étape par étape
Bjr,
3300/2 =1650
1650/2 =825
825/3 = 275
275/5 =55
55/5 = 11
=> 2*2*3*5*5*11
4680/2 =2340
2340/2 =1170
1170/2 =585
585/3 =195
295/3 =65
65/5 =13
=> 2*2*2*3*3*5*13
2*2*3*5*5 * 11
2*2*2*3*3*5*13
en commun: 2*2*3*5 = 60
3300/ 60 = 55
4680/60= 78
3300/4680 = 55/78
Merci Maudmarine!
☺
Bonjour,
1) 3 300 = 2 x 2 x 3 x 5 x 5 x 11
2) 4 680 = 2 x 2 x 2 x 3 x 3 x 5 x 13
3) 3 300/4 680
= [(2 x 2 x 3 x 5) x (5 x 11)] / [(2 x 2 x 3 x 5) x (2 x 3 x 13)]
= (60 x 55) / (60 x 78)
= 55/78.