Question

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Answer 1

 Числитель:

$((3 \frac{7}{12}-2 \frac{11}{18}+2 \frac{1}{24})*1 \frac{5}{31}- \frac{3}{52}*(3 \frac{1}{2}+ \frac{5}{6}))*1 \frac{7}{13}=$$((3 \frac{42}{72}-2 \frac{44}{72}+2 \frac{3}{72})*\frac{36}{31}- \frac{3}{52}*(3 \frac{3}{6}+ \frac{5}{6}))* \frac{20}{13}=$ = $(3 \frac{1}{72}* \frac{36}{31}- \frac{3}{52}*4 \frac{2}{6})* \frac{20}{13}= (\frac{217}{72}* \frac{36}{31}- \frac{3}{52}* \frac{26}{6})* \frac{20}{13}= ( \frac{7}{2}- \frac{1}{4}* \frac{20}{13}) =$$\frac{13}{4}* \frac{20}{13}=5$

Знаменатель:

$\frac{19}{84} / (5 \frac{52}{168}-2 \frac{78}{168}+ \frac{35}{168})+1 \frac{2}{27}- \frac{4}{27}= \frac{19}{84} / 3 \frac{9}{168}+1 \frac{2}{27}- \frac{4}{27}=$$\frac{19}{84} / \frac{513}{168} + 1 \frac{2}{27}- \frac{4}{27}= \frac{19}{84} * \frac{168}{513} + 1 \frac{2}{27} - \frac{4}{27} = \frac{2}{27} + 1 \frac{2}{27} - \frac{4}{27} = 1$

Действие дроби:

5 / 1 = 5

Ответ. 5