3 and 1/2 and 5 and 1/2 equals 9
3 + 6 = 9
56 + 34 = 90 is an integer, not a fraction.
34 = 56
-763
90
That equals 199
To estimate the sum of 56 and 58, you can round both numbers to the nearest ten. Rounding 56 to 60 and 58 to 60 gives you an estimated sum of 120. Therefore, the estimate of 56 plus 58 is approximately 120.
83+34
34 \times 56 = 1.904
90
34 - 56 = -22
LCM of 34 and 56 = 952
56 - 34 = 22