Question

3 intregi si 4 supra 5 minus 1 intreg si 3 supra 10 minus 4 supra 15​

Answer 1

3 intregi 4/5 = (3*5+4)/ 5 = 19/5

1 intreg 3/10 = (10+3)/10 = 13/10

19/5 - 13/10 - 4/15 amplifici pe 19/5 cu 6, pe 13/10 cu 3 si pe 4/15 cu 2

114/30 - 39/30 - 8/30 = 67/30

Answer 2

$3 \frac{4}{5} - 1 \frac{3}{10} - \frac{4}{15} = \frac{ {}^{6)} 19}{5} - \frac{ {}^{3)} 13}{10} - \frac{ {}^{2)} 4}{15} = \\ \\ \frac{144 - 39 - 8}{30} = \frac{67}{30}$

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