Question

qual o mdc de (9,90)

Answer 1

9/3
3/3
1

90/2
45/3
15/3
5/5
1

MDC => 3

Answer 2

9,90 | 3
3 ,30 | 3
1, 10 |2
1,  5  |5
1,1 ⇒⇒⇒⇒⇒⇒ 3².2.5

MDC= 3*3= 9