No, it can be simplified further.
it is 3
It is: 135/216 = 5/8 simplified
126/12 = 21/2 or 10.5
It is: 78/126 = 13/21 simplified
1 over 9
135/352 is already in its simplest form
1/2
It is: 126/162 = 7/9 simplified
It is 63/126 = 1/2 simplified
To simplify 126 over 15, we first find the greatest common divisor (GCD) of 126 and 15, which is 3. Dividing both the numerator and denominator by 3 gives us 42 over 5. Therefore, 126 over 15 simplified is 42 over 5.
63/126 simplified is ½.