Question 290899
Estimate the following sum:

{{{3&1/10 + 4&7/8 + 2&1/11 + 7&5/6}}}


{{{3&1/10}}} is close to 3


{{{4&7/8}}} is close to 5


{{{2&1/11}}} is close to 2


{{{7&5/6}}} 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(18)}}}.