Question

What is 18/42 in the simplest form?

Answer 1

18 | 2
9 | 3
3 | 3
1

42 | 2
21 | 3
7 | 7
1

2,3
GCF (18,42) = 2*3 = 6

`(18)/(42) = (18:6)/(42:6) = (3)/(7)`

Answer 2

`(18)/(42)=(18:2)/(42:2)=(9)/(21)=(9:3)/(21:3)=\boxed{(3)/(7)}`