Respuesta :

Step-by-step explanation:

1/1 , 3

3/1 , 3

1 , 1

HCF is 1

LCM is 3 × 1 =3

2/2 , 9

3/1 , 9

3/1 , 3

1 , 1

HCF is 1

LCM is 3 × 3 × 2= 18