Yes.
84/196= 42/98 = 21/49 = 3/7
18/196 = 9/98
No, it cannot.
It is: 196/10000 = 49/2500
196/270 = 98/135
It is 72/49
It is: 4/121
That would 49 over 100.
75/196 is in its simplest form.
21 over 24 simplified is 7/8.
32 over 21 (32/21) cannot be further simplified.
Already simplified!