Question

por favir ayuda no entiendo

Answer 1

$\frac{3}{5} + \frac{4}{3} = \frac{(3*3)+(5*4)}{15} = \frac{29}{15} =1 \frac{14}{15}$

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$\frac{4}{3} + \frac{2}{7} = \frac{(7*4)+(3*2)}{21} = \frac{34}{21} = 1 \frac{13}{21}$
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$\frac{6}{8} + \frac{3}{5} = \frac{(5*6) + (8*3) }{40} = \frac{54}{40} = \frac{27}{20} = 1 \frac{7}{20}$

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$\frac{6}{3} + \frac{8}{7} = \frac{(7*6)+(3*8)}{21} = \frac{66}{21} = \frac{22}{7} =3 \frac{1}{7}$

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$\frac{6}{5} + \frac{8}{9} = \frac{(9*6)+(5*8)}{45} = \frac{94}{45} = 2 \frac{4}{45}$

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$\frac{3}{9} + \frac{3}{8} = \frac{(8*3)+(9*3)}{72} = \frac{51}{72} = \frac{17}{24}$