Question

$\frac{5}{3} + \frac{7}{5} - \frac{3}{10}$
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Answer 1

5/3 + 7/5 - 3/10

(5 . 5 + 3 . 7)/15 - 3/10

(25 + 21)/15 - 3/10

46/15 - 3/10

(10 . 46 - 15 . 3)/150

(460 - 45)/150

415/150 (simplifica por 5)

83/30

Resposta: 83/30