Question

How to evaluate 5/7 - 2/3 + 4/9

Answer 1

Answer:

$\frac{5}{7} - \frac{2}{3} + \frac{4}{9}$

$( \frac{5}{7} + \frac{4}{9} ) - \frac{2}{3}$

$( \frac{45 + 28}{63}) - \frac{2}{3}$

$\frac{73}{63} - \frac{42}{63}$

$\frac{73 - 42}{63}$

$\frac{31}{63}$

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