Question

$\frac{4}{9} + \frac{2}{7}$
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Answer 1

Answer:

Without hassle, use 1/4 as-is, or $\frac{1}{4}$ (similar to amsmath's \tfrac{1}{4}) will typeset

Answer 2

Answer:

4/9 + 2/7 = $\frac{46}{63}$