SOLUTION: Estimate the following sum: {{{3&1/10 + 4&7/8 + 2&1/11 + 7&5/6}}}

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Estimate the following sum: {{{3&1/10 + 4&7/8 + 2&1/11 + 7&5/6}}}      Log On


   

Question 290899: Estimate the following sum:
3%261%2F10+%2B+4%267%2F8+%2B+2%261%2F11+%2B+7%265%2F6
Found 3 solutions by unlockmath, Edwin McCravy, MathTherapy:
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
If you want an estimate, add up the whole numbers which is:
16 and the fractions come to around 2 so the answer is:
18 estimated
RJ
www.math-unlock.com

Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!

3%261%2F10+%2B+4%267%2F8+%2B+2%261%2F11+%2B+7%265%2F6

Round each to the nearest integer

1%2F10 is less than 1%2F2 so round 3%261%2F10 down to 3

7%2F8 is more than 1%2F2 so round 4%267%2F8 up to 5

1%2F11 is less than 1%2F2 so round 2%261%2F11 down to 2

5%2F6 is more than 1%2F2 so round 7%265%2F6 up to 8

3%2B5%2B2%2B8=18

The exact answer is 17%261187%2F1320 or about %2217.8992424%B7%B7%B7%22

Edwin

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
Estimate the following sum:
3%261%2F10+%2B+4%267%2F8+%2B+2%261%2F11+%2B+7%265%2F6

3%261%2F10 is close to 3

4%267%2F8 is close to 5

2%261%2F11 is close to 2

7%265%2F6 is close to 8

Adding all the ESTIMATED numbers, we get 3 + 5 + 2 + 8, or 18. So, so the 4 mixed numbers add up to approximately highlight_green%2818%29.