Question

Difficulty: EasyFraction Operations

Arrange the following fractions and mixed numbers in ascending order (from smallest to largest).

  1. 178\frac{7}{8}
  2. 21141 \frac{1}{4}
  3. 332\frac{3}{2}
  4. 41341 \frac{3}{4}

Answer

The correct ascending order is 78\frac{7}{8}, 1141 \frac{1}{4}, 32\frac{3}{2}, and 1341 \frac{3}{4}.
The proper fraction 78\frac{7}{8} is the only value less than 1, placing it first. Converting 32\frac{3}{2} to 1121 \frac{1}{2} (or 1.51.5) allows easy comparison with 1141 \frac{1}{4} (1.25) and 1341 \frac{3}{4} (1.75), confirming the correct ascending sequence.

Step-by-Step Solution

1
Identify values less than 1.
78\frac{7}{8} is the only proper fraction (less than 1), making it the smallest.
Proper fractions are always less than mixed numbers or improper fractions.
2
Convert the improper fraction to a mixed number to make comparison easier.
32=112\frac{3}{2} = 1 \frac{1}{2}.
Matching the format of the other numbers allows for a direct comparison of the fractional parts.
3
Find a common denominator for the fractional parts of the values greater than 1 (1141 \frac{1}{4}, 1121 \frac{1}{2}, and 1341 \frac{3}{4}).
The common denominator is 4. 1121 \frac{1}{2} becomes 1241 \frac{2}{4}.
Common denominators allow you to directly compare the numerators.
4
Order the mixed numbers by their fractional parts.
1141 \frac{1}{4} is smaller than 1241 \frac{2}{4} (which is 32\frac{3}{2}), and 1241 \frac{2}{4} is smaller than 1341 \frac{3}{4}.
Since the whole numbers are identical, the fractions determine the order.

Key Concept

Ordering mixed numbers and improper fractions
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