Question

Ajutor!! Dau coroana

Answer 1

a)

$\frac{10 \times 6 + 1}{6} - \frac{35}{10} = \frac{61}{6} - \frac{7}{2} ^{3} = \frac{61 - 21}{6} = \frac{40}{6} = \frac{20}{3}$

b)

$\frac{175}{100} - \frac{1 \times 8 + 3}{8} = \frac{7}{4} ^{2} - \frac{11}{8} = \frac{14 - 11}{8} = \frac{3}{8}$

c)

$\frac{2 \times 5 + 3}{5} - \frac{104}{100} = { \frac{13}{5} }^{5} - \frac{26}{25} = \frac{65 - 26}{25} = \frac{39}{25}$

d)

$\frac{3 \times 15 + 2}{15} - \frac{43 - 4}{9} = \frac{47}{15} - \frac{39}{9} = \frac{47}{15} - { \frac{13}{3} }^{5} = \frac{47 - 65}{3} = - \frac{18}{15} = - \frac{6}{5}$

e)

$\frac{1 \times 21 + 5}{21} - \frac{26 - 2}{9} = \frac{26}{21} - \frac{24}{9} = \frac{26}{21} - \frac{8}{3} ^{7} = \frac{26 - 56}{21} = - \frac{30}{21} = - \frac{10}{7}$

f)

$\frac{183 - 18}{90} - \frac{2 \times 5 + 1}{5} = \frac{165}{90} - \frac{11}{5} = \frac{11}{6} ^{5} - \frac{11}{5}^{6} = \frac{55 - 66}{30} = - \frac{11}{30}$