Question

нужно решить пожалуйста помогите!​

Answer 1

Решение:

$1)3 \frac{1}{9} \div 2 \frac{1}{3} - 2 \frac{5}{6} = \frac{28}{9} \times \frac{3}{7} - \frac{17}{6} = \frac{4}{3} - \frac{17}{6} = \frac{ - 9}{6} = - 1,5$

$2)1 \frac{5}{7} - 4 \frac{3}{13} \div 1 \frac{19}{26} = \frac{12}{7} - \frac{55}{13} \times \frac{26}{45} = \frac{12}{7} - \frac{22}{9} = \frac{ - 46}{63}$

$3)10 \frac{16}{17} \div 8 \frac{5}{11} + 1 \frac{2}{3} = \frac{186}{17} \times \frac{11}{93} + \frac{5}{3} = \frac{22}{17} + \frac{5}{3} = \frac{151}{51} = 2 \frac{49}{51}$

$4) \frac{47}{48} \div 3 \frac{13}{27} - \frac{13}{16} = \frac{47}{48} \times \frac{27}{94} - \frac{13}{16} = \frac{9}{32} - \frac{13}{16} = - \frac{17}{32}$