Question

m.m.c(45,30)eM.M.C(60,80)

Answer 1

a) $\text{mmc}(45,30)$:

Fatorando:

45,30 | 2
45,15 | 3
15, 5  | 3
5, 5    | 5
1, 1 

$\text{mmc}(45,30)=2\times3^2\times5=90$

b) $\text{mmc}(60,80)$:

60, 80 | 2
30, 40 | 2
15, 20 | 2
15, 10 | 2
15, 5   | 3
5, 5     | 5
1, 1, 

$\text{mmc}(60,80)=2^4\times3\times5=240$