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$\text{Simplify: } \frac{7}{8} + \frac{2}{5}$
51/40
6/7
8/5
1
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Find the least common denominator of 8 and 5. The LCD is 40.
Convert the fractions:
$$\frac{7}{8} = \frac{35}{40}$$$$\frac{2}{5} = \frac{16}{40}$$
Now add the numerators:
$$35 + 16 = 51$$
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