Respuesta :

9 is the LCM, and the GCF is 27
apologiabiology
when finding GCF and LCM, it is is easiest to start by factoring

81=3*3*3*3
99=3*3*11

GCF, group the common ones
3*3 is common
GCF is 9


LCM
group common ones that include all
3*3*3*3*11=891



GCF=9
LCM=891