Oh, dude, rounding numbers is like the easiest math you'll ever do. So, 6.8 is closer to 7 than 6, right? So, bam, round that bad boy up to 7. Like, no big deal, it's just a little nudge up the number line.
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It then is 68 because .9 rounds up to 1
Whole: 68Tenth: 67.9 Hundredth : 67.94
The fraction equivalent to 68 is 68/1. This is because any whole number can be represented as a fraction by placing it over 1. In this case, 68 can be written as 68/1, which is equivalent to the whole number 68.
100
It is 31.