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Estimate the sum by rounding each mixed number to the nearest half or whole number.

8 1/5+ 1 7/16

2 Answers

5 votes

Final answer:

To estimate the sum of 8 1/5 and 1 7/16, round 8 1/5 down to 8 and 1 7/16 up to 1.5. Then, add the rounded numbers together to get an estimated sum of 9.5.

Step-by-step explanation:

To estimate the sum of the mixed numbers 8 1/5 and 1 7/16 by rounding them to the nearest half or whole number, we use the following steps:

  1. Round 8 1/5 to the nearest half or whole number. 8 1/5 is closer to 8 than it is to 8.5, so we round it down to 8.
  2. Round 1 7/16 to the nearest half or whole number. 1 7/16 is closer to 1.5 than it is to 1, so we round it up to 1.5.
  3. Add the rounded numbers together. 8 + 1.5 equals 9.5.

Therefore, by rounding each mixed number to the nearest half or whole number, the estimated sum of 8 1/5 and 1 7/16 is 9.5.

User Sternjobname
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7.8k points
4 votes
You round the 1st number to the nearest whole number which is 8. The second number is rounded to the nearest half.
So it would be 8 + 1 8/16 = 9 1/2.
User Terry Kernan
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7.3k points