Ordering 3 or More Mixed Numbers

Mixed number - a single value combining a whole number and a _ part of a whole
Order these mixed numbers from greatest to least: 1 1/8 , 1 3/12 , and 1 8/11
Since 4/8 = 1/2, use the benchmarks to order the fractions. |

_ > 1 4/8 > _

1 answer

To compare the mixed numbers \(1 \frac{1}{8}\), \(1 \frac{3}{12}\), and \(1 \frac{8}{11}\), we first convert each of the fractions to a common benchmark for easier comparison.

Step 1: Convert the fractions to decimals

  1. For \(1 \frac{1}{8}\): \[ 1 \frac{1}{8} = 1 + \frac{1}{8} = 1 + 0.125 = 1.125 \]

  2. For \(1 \frac{3}{12}\) (Note that \( \frac{3}{12} = \frac{1}{4} = 0.25\)): \[ 1 \frac{3}{12} = 1 + \frac{3}{12} = 1 + 0.25 = 1.25 \]

  3. For \(1 \frac{8}{11}\): \[ 1 \frac{8}{11} = 1 + \frac{8}{11} \approx 1 + 0.727 \approx 1.727 \quad (\text{using } \frac{8}{11} \approx 0.727) \]

Step 2: Compare the mixed numbers

Now we compare the decimal values:

  • \(1 \frac{1}{8} \approx 1.125\)
  • \(1 \frac{3}{12} \approx 1.25\)
  • \(1 \frac{8}{11} \approx 1.727\)

Ordering these from greatest to least, we get:

  • Greatest: \(1 \frac{8}{11}\) (1.727)
  • Middle: \(1 \frac{3}{12}\) (1.25)
  • Least: \(1 \frac{1}{8}\) (1.125)

Conclusion

Therefore, the order from greatest to least is: \[ 1 \frac{8}{11} > 1 \frac{3}{12} > 1 \frac{1}{8} \]

Benchmark Statement

Now, using your benchmark statement:

  • You can fill in the blanks as follows: \[ 1 \frac{8}{11} > 1 \frac{4}{8} > 1 \frac{3}{12} > 1 \frac{1}{8} \]

This shows the ordering using the fraction \( \frac{4}{8} \) as a benchmark in your reference.