Question

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Answer 1

$1 \frac{1}{9} + 2,75 + \frac{1}{3} = \frac{10}{9} + \frac{275}{100} + \frac{1}{3} = \frac{10}{9} + \frac{11}{4} \frac{1}{3} = \frac{40 + 99 + 12}{36} = \frac{151}{36} = 4 \frac{7}{36}$

$8,5 + \frac{5}{6} - 6,25 = 2,25 + \frac{5}{6} = \frac{9}{4} + \frac{5}{6}=\frac{27+10}{12} = \frac{37}{12} = 3 \frac{1}{12}$