Question

алаоиатаоцллвиаикдущокркив​

Answer 1

$(5 \frac{5}{6} + 8 \frac{2}{9} ) \div 25.3 - 3 \frac{1}{9} + 1.5 \div \frac{27}{28} = - 1$

$1) \: \: 5 \frac{5}{6} + 8 \frac{2}{9} = 5 + 8 + \frac{5}{6} + \frac{2}{9} = 13 + \frac{15}{18} + \frac{4}{18} = 13 + \frac{19}{18} = 13 + 1 \frac{1}{18} = 14 \frac{1}{18}$

$2) \: \: 14 \frac{1}{18} \div 25.3 = \frac{253}{18} \div \frac{253}{10} = \frac{253}{18} \times \frac{10}{253} = \frac{10}{18} = \frac{5}{9}$

$3) \: \: 1.5 \div \frac{27}{28} = \frac{15}{10} \div \frac{27}{28} = \frac{15}{10} \times \frac{28}{27} = \frac{ 14}{ 9}$

$4) \: \: \frac{5}{9} - 3 \frac{1}{9} = \frac{5}{9} - \frac{28}{9} = - \frac{23}{9}$

$5) \: \: -\frac{ 23}{9} + \frac{14}{9} = \frac{ - 23 + 14}{9} = \frac{ - 9}{9} = - 1$