If your answer needs to remain a fraction, you cannot reduce 34 over 85. The reason for this is that there is no number that can be divided into both 34 and 85 evenly. For example, 2 can be divided into 34 evenly (so the answer is a whole number), but 85 cannot be. Or 85 can be divided by 5, but 34 cannot be. So 34 over 85 is reduced as low as it can be as a fraction. Hope that makes sense to you.
34/85 is simplified
4/5
32 / 34 can be reduced to 16/17 as 32 and 34 are both divisible by two.
6/68 can be reduced to 3/34
34/36 can be reduced to 17/18
34/85 is simplified
4 over 85 = 4/85
85%
4/5
17/12
17 over 30
32 / 34 can be reduced to 16/17 as 32 and 34 are both divisible by two.
6/68 can be reduced to 3/34
85% of 34 = 85% * 34 = 0.85 * 34 = 28.9
34/36 can be reduced to 17/18
17
29 over 34 as a percentage is the same as 29 / 34 29 / 34 = 0.85294117647058823529411764705882 But let's round that to 0.85 0.85 = 85%