Question

estimate the whole number by rounding the mix number to the nearest whole number
9 4/5+ 24 3/10 + 16 17/20

A)49
B) 50
C)51
D)52

Answer 1

To solve the problem, let's first convert the mixed numbers into improper fractions, round them to the nearest whole number, and then sum them.

1. **Convert mixed numbers to improper fractions or estimate each:**

- **For 9 4/5:**
\[
9 + \frac{4}{5} \approx 10 \quad (\text{Since } 4/5 \text{ is close to } 1)
\]

- **For 24 3/10:**
\[
24 + \frac{3}{10} \approx 24 \quad (\text{Since } 3/10 \text{ is less than } 0.5)
\]

- **For 16 17/20:**
\[
16 + \frac{17}{20} \approx 17 \quad (\text{Since } 17/20 \text{ is close to } 1)
\]

2. **Add the rounded values together:**
\[
10 + 24 + 17 = 51
\]

Thus, rounding the mixed numbers to the nearest whole numbers and adding them gives approximately 51.

Therefore, the answer is **C) 51**.