Question

hola me ayudan por favor
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Answer 1

$\frac{3}{5} + \frac{6}{4} = \frac{3 \times 4 + 5 \times 6}{5 \times 4} = \frac{12 + 30}{20} = \frac{42}{20} = \frac{21}{10}$

Se le saca mitad a 42/20 y sale 21/10 .