Question

Estimate the sum by first rounding each mixed number to the nearest whole number and then adding

3 8/9 + 2 5/6

Answer 1

About 4+ about 3 =7

Answer 2

For this case we have:

$3 \frac {8} {9} = \frac {27 + 8} {9} = \frac {35} {9} = 3.8888$

Round the nearest whole, that is, to 4.

$2 \frac {5} {6} = \frac {12 + 5} {6} = \frac {17} {6} = 2.8333$

Round the nearest whole, that is, to 3.

So, rewriting we have:

$4 + 3 = 7$

ANswer:

$3 \frac {8} {9} +2 \frac {5} {6} = 7$