Explicación paso a paso:
a)
[tex] \frac{3}{5} + \frac{2}{4} - ( \frac{3}{7} + \frac{1}{2} ) \\ \frac{22}{20 } - \frac{13}{14} \\ \frac{48}{280} [/tex]
b)
[tex] \frac{10 \times - 3}{5} = \frac{3 + 4 \times }{6} \\ 60 \times - 18 = 15 + 20 \times \\ 40 \times = 33 \\ \times = \frac{33}{40} [/tex]
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Verified answer
Explicación paso a paso:
a)
[tex] \frac{3}{5} + \frac{2}{4} - ( \frac{3}{7} + \frac{1}{2} ) \\ \frac{22}{20 } - \frac{13}{14} \\ \frac{48}{280} [/tex]
b)
[tex] \frac{10 \times - 3}{5} = \frac{3 + 4 \times }{6} \\ 60 \times - 18 = 15 + 20 \times \\ 40 \times = 33 \\ \times = \frac{33}{40} [/tex]