Which is the best estimate of the sum of 5 1/5 and 8 /6
it can be 13
Which is the best estimate of the sum of
5
1
5
and
8
5
6
?
A.
12
B.
13
C.
14
D.
15
5 1/5 ≈ 5
8/8 ≈ 1
5+1=6
but it will be low, since we rounded down on both terms
14
To find the best estimate of the sum of 5 1/5 and 8/6, we can round each number and perform the addition.
The given numbers are 5 1/5 and 8/6. First, let's convert them to mixed fractions for easier calculations.
5 1/5 can be written as (5 * 5 + 1) / 5 = 26/5.
To convert 8/6 to a mixed fraction, we divide the numerator (8) by the denominator (6). The quotient is 1 with a remainder of 2. Thus, we have 1 2/6.
Now, rounding each of the fractions, we have 26/5 rounded to the nearest whole number, which is 5. And 1 2/6 rounded to the nearest whole number is 1.
Adding these rounded whole numbers together, we have 5 + 1 = 6.
Therefore, the best estimate of the sum of 5 1/5 and 8/6 is 6.