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Q: Which is bigger .8 or .81?

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No 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88. 81 is not a multiple of 8.

14. 14*8-81=31. or (31+81)/8 = 14

it is 81 because you divide it by 8

81; each number is a factor of 81, and it is the smallest you can get.

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The answer depends on what you mean by higher. 81 is bigger than 64. But the square roots of 81 are -9 and +9 while the square roots of 64 are -8 and +8. You then have -9 < -8 so sqrt(81) < sqrt(64) -9 < 8 so sqrt(81) < sqrt(64) -8 < 9 so sqrt(64) < sqrt(81) 8 < 9 so sqrt(64) < sqrt(81) Take your pick!

81 times 8 = 648

81 / 8 = 10 with a remainder of one. So 81 / 8 simplified is 10 1/8.

8/81 can't be simplified any further.

81

81

8/81 is already in simplest form. The only common factor between 8 & 81 is 1.

It is: (8*10)+1 = 81

No 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88. 81 is not a multiple of 8.

It is: 8/9 of 81 = 72

No, it does not.

5 over 8 is bigger (1/8 bigger)

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