Question

Estimate the sum by rounding the mix number to the nearest whole number

13 3/5 +35 9/10+ 8 7/20

Answer 1

To estimate the sum by rounding the mixed numbers to the nearest whole numbers, we'll first round each mixed number.

1. **Round 13 3/5**:
- The fractional part \(3/5\) is 0.6, which is more than 0.5. Therefore, rounding up gives us **14**.

2. **Round 35 9/10**:
- The fractional part \(9/10\) is 0.9, which is also more than 0.5. So, rounding up gives us **36**.

3. **Round 8 7/20**:
- The fractional part \(7/20\) is 0.35, which is less than 0.5. Thus, we round down to **8**.

Now, we can add the rounded whole numbers together:
\[
14 + 36 + 8
\]

Calculating the sum:
\[
14 + 36 = 50
\]
\[
50 + 8 = 58
\]

The estimated sum of the mixed numbers is **58**.