hasil dri (2 1/2:1/4)+(0,25×4/5) adalah

[tex](2 \frac{1}{2} \div \frac{1}{4} ) + (0.25 \times \frac{4}{5} )[/tex]
[tex]( \frac{5}{2} \times \frac{4}{1} ) + ( \frac{1}{4} \times \frac{4}{5} )[/tex]
[tex]10 + \frac{1}{5} [/tex]
[tex]10 \frac{1}{5} [/tex]