Question

Estimate the difference. Round each number to the nearest whole number, then subtract.
11 1/2 - 2 5/7


The difference is approximately .

Answer 1

First, we need to round each number to the nearest whole number.

For \( 11 \frac{1}{2} \):
- \( \frac{1}{2} \) is equal to 0.5, which means \( 11 \frac{1}{2} \) is approximately 12 when rounded to the nearest whole number.

For \( 2 \frac{5}{7} \):
- \( \frac{5}{7} \) is approximately 0.714, which means \( 2 \frac{5}{7} \) is approximately 3 when rounded to the nearest whole number.

Now we subtract the rounded values:
\[
12 - 3 = 9
\]

Therefore, the approximate difference is **9**.