Question

$15 \frac{5}{12} + 14 \frac{7}{13} - 9 \frac{5}{12}$
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Answer 1

Ответ:

$\displaystyle\\\boxed{20\frac{7}{13} }$

Пошаговое объяснение:

$\displaystyle\\15\frac{5}{12} +14\frac{7}{13} -9\frac{5}{12} =15\frac{65}{156} +14\frac{84}{156} -9\frac{65}{156} =20\frac{84}{156}=20\frac{7}{13}$

Answer 2

$15 \frac{5}{12} + 14 \frac{7}{13} - 9 \frac{5}{12} = (15 + 14 - 9) + ( \frac{5}{12} + \frac{7}{13} - \frac{5}{12} ) = (29 -9) + (0 + \frac{7}{13} ) = 20 \frac{7}{13}$

Ответ: $20 \frac{7}{13} .$