a) $2\frac{1}{4} = \frac{{2 \times 4 + 1}}{4} = \frac{9}{4}$
b) $5\frac{2}{3} = \frac{{5 \times 3 + 2}}{3} = \frac{{17}}{3}$
c) \(4\frac{3}{{10}} = \frac{{4 \times 10 + 3}}{{10}} = \frac{{43}}{{10}}\)
d) $7\frac{{29}}{{100}} = \frac{{7 \times 100 + 29}}{{100}} = \frac{{729}}{{100}}$
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