Well, honey, to write 6.91 as a mixed number, you would have 6 whole units and 91 hundredths. So, it would be written as 6 91/100. Easy peasy lemon squeezy!
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Rounded to the nearest ten, 691 becomes 690 as the last number is less than five.
Well, let's take a look at this number, friend. 17.275 can be written as an improper fraction by multiplying the whole number (17) by the denominator of the decimal (100), which gives us 1727/100. To turn this into a mixed number, we divide the numerator by the denominator to get 17 with a remainder of 27, so the mixed number is 17 27/100. Remember, there are many ways to express numbers, and each one is beautiful in its own way.
345.5
To round 691 to the nearest 10, we look at the digit in the tens place, which is 9. Since 9 is greater than or equal to 5, we round up the tens place to the next higher number. Therefore, 691 rounded to the nearest 10 is 700.
700