Question

me ajudem por favor
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Answer 1

Resposta:

b)

4 . $\frac{5}{9}$ - $\frac{3}{9}$ = $\frac{20}{9}$ - $\frac{3}{9}$ = $\frac{20 - 3}{9}$ = $\frac{17}{9}$ = 1,89

e)

5 + $\frac{3}{5}$ + $\frac{8}{10}$ = 5 + $\frac{6+8}{10}$ = 5 + $\frac{14}{10}$ = 5 + $\frac{7}{5}$ = 5 + 1,4 = 6,4

h)

5 . $\frac{2}{5}$ - $\frac{1}{3}$ + $\frac{1}{2}$ = $\frac{10}{5}$ - $\frac{2+3}{6}$ = 2 - $\frac{5}{6}$ = 2 - 0,83 = 1,17

Espero ter ajudado :D