1.
[tex] \frac{7}{4} \times ( - \frac{16}{5} )[/tex]
[tex] - 7 \times \frac{4}{5} [/tex]
[tex] \frac{28}{5} = \frac{14}{5} = \frac{7}{5} [/tex]
2.
[tex] \frac{39}{5} \div \frac{12}{5} [/tex]
[tex] - \frac{39}{5} \times \frac{5}{12} [/tex]
[tex] - 13 \times \frac{1}{4} [/tex]
[tex] - \frac{13}{4} [/tex]
3. ( - 1,4 ) × ( - 5,06 ) = - 7,084 ( w zaokragleniu 7,080 )
4. 0,056÷0,8 = -0,07
