Question

calcule mmc (14 , 21 ) mmc (15 ,20 )

Answer 1

mmc de 14,21 = 42. mmc de 15,20= 60

Answer 2

14,21//2
7,21//3
7,7//7
1,1//___
mmc=42

15,20//2
15,10//2
15,5//3
5,5//5
1,1//__
mmc=60