Classify fractions into unit, proper, improper, and mixed categories on this educational worksheet.

Final Answer:
Unit fraction: $\frac{1}{9},\ \frac{1}{28},\ \frac{1}{25}$
Proper fraction: $\frac{7}{8},\ \frac{5}{4}$ is not proper — correction: $\frac{7}{8},\ \frac{2}{8},\ \frac{15}{7}$ is not proper — let’s carefully reclassify all:

List of fractions:
- $\frac{7}{8}$ → numerator < denominator → proper
- $\frac{5}{4}$ → numerator > denominator → improper
- $1\frac{2}{3}$ → mixed → mixed
- $\frac{29}{5}$ → 29 > 5 → improper
- $\frac{1}{9}$ → numerator = 1, denominator > 1 → unit
- $\frac{1}{28}$ → same → unit
- $\frac{15}{7}$ → 15 > 7 → improper
- $\frac{2}{5}$ → 2 < 5 → proper
- $\frac{2}{8}$ → 2 < 8 → proper
- $\frac{11}{5}$ → 11 > 5 → improper
- $\frac{19}{7}$ → 19 > 7 → improper
- $\frac{1}{25}$ → numerator = 1 → unit
- $2\frac{3}{7}$ → whole + fraction → mixed
- $4\frac{2}{7}$ → mixed

Now assign correctly:

✔ Unit fractions: only those with numerator = 1 and denominator > 1 (and not part of a mixed number):
$\frac{1}{9},\ \frac{1}{28},\ \frac{1}{25}$

✔ Proper fractions: numerator < denominator, and *not* a unit fraction (though unit fractions are technically proper, the worksheet separates them, so we follow the bag labels — “Unit fraction” bag is separate, so proper fractions are non-unit with num < den):
$\frac{7}{8},\ \frac{2}{5},\ \frac{2}{8}$

✔ Improper fractions: numerator ≥ denominator, *not* written as mixed:
$\frac{5}{4},\ \frac{29}{5},\ \frac{15}{7},\ \frac{11}{5},\ \frac{19}{7}$

✔ Mixed fractions: whole number + proper fraction:
$1\frac{2}{3},\ 2\frac{3}{7},\ 4\frac{2}{7}$

So final grouping:

Unit fraction bag: $\frac{1}{9},\ \frac{1}{28},\ \frac{1}{25}$
Proper fraction bag: $\frac{7}{8},\ \frac{2}{5},\ \frac{2}{8}$
Improper fraction bag: $\frac{5}{4},\ \frac{29}{5},\ \frac{15}{7},\ \frac{11}{5},\ \frac{19}{7}$
Mixed fraction bag: $1\frac{2}{3},\ 2\frac{3}{7},\ 4\frac{2}{7}$

Final Answer:
Unit fraction: $\frac{1}{9},\ \frac{1}{28},\ \frac{1}{25}$
Proper fraction: $\frac{7}{8},\ \frac{2}{5},\ \frac{2}{8}$
Improper fraction: $\frac{5}{4},\ \frac{29}{5},\ \frac{15}{7},\ \frac{11}{5},\ \frac{19}{7}$
Mixed fraction: $1\frac{2}{3},\ 2\frac{3}{7},\ 4\frac{2}{7}$