Question

which is a good comparison of the estimated sum and the actual sum of 7 7\8 + 2 11\12

Answer 1

Estimate: 8+3 or 11.
Actual Sum: 10 76/96 or 10 19/24

Answer 2

Seven and seven eighths rounds up to eight. Two and eleven twelfths rounds to three. Estimate equation: 8+3=11. Now you know your answer should be around 11. Then to find your actual answer you have to find the common denominator! If u need anymore help ask me! Hope I helped!