3. Calculati:
[tex]a) 1 + 0,8 - \frac{6}{15} =?\ \textless \ br /\ \textgreater \ b) \frac{10}{3}× \frac{4}{5} -0,(6)=?\ \textless \ br /\ \textgreater \ c) \frac{9}{16} : \frac{3}{4}+ 1 \times \frac{1}{2} =?\ \textless \ br /\ \textgreater \ d) (2 \times \frac{1}{4} + \frac{5}{6} ): \frac{7}{3} +(1 \times \frac{1}{1}{2} } [/tex]
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