Question

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Answer 1

Resposta:

a) $\frac{9}{4} - \frac{1}{6} = \frac{25}{12}$

b) $\frac{12}{5} - \frac{3}{4} + \frac{1}{10} = \frac{7}{4}$

c) $\frac{1}{2} + \frac{3}{2} + \frac{5}{2} - \frac{7}{2} = 1$

d) $+ \frac{5}{9} - \frac{1}{2} + \frac{4}{6} = \frac{13}{18}$

e) $\frac{12}{9} - \frac{15}{9} - \frac{5}{9} = - \frac{8}{9}$

f) $\frac{3}{8} + \frac{1}{10} + \frac{3}{4} - \frac{7}{20} = \frac{7}{8}$