[tex]\begin{gathered} \text{for example, in the fist one, get you calculator and type 1/2} \\ the\text{ calculator sould show }0.5 \\ then,\text{ multiply by 100 }amd\text{ your answer is 50\%} \end{gathered}[/tex][tex]\begin{gathered} for\text{ the others is similar:} \\ \frac{3}{20}=0.15 \\ \text{and 0.15 by 100 is 15\%} \end{gathered}[/tex][tex]\text{can you try with the remaing 2 ? and let me know your questions please}[/tex][tex]\begin{gathered} \frac{1}{5}=0.2\text{ hence 0.2 by 100 gives 20\%} \\ \frac{1}{10}=0.1\text{ hence 0.1 by 100 gives 10\%} \end{gathered}[/tex]
