Explicación paso a paso:
[tex] \frac{7}{20} - \frac{3}{10} [/tex]
7 x 10 = 70
20 x 3 = 60
20 x 10 = 200
70 - 60 =
[tex] \frac{10}{200} [/tex]
mitad de 10 = 5
mitad de 200 = 100
simplificas
[tex] \frac{5}{100} [/tex]
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Explicación paso a paso:
[tex] \frac{7}{20} - \frac{3}{10} [/tex]
7 x 10 = 70
20 x 3 = 60
20 x 10 = 200
70 - 60 =
[tex] \frac{10}{200} [/tex]
mitad de 10 = 5
mitad de 200 = 100
simplificas
[tex] \frac{5}{100} [/tex]