In order to add these, we need to either convert all the numbers to fractions or all of the numbers to decimals. I will use fractions since that would require fewer conversions.
\(0.5=\frac{1}{2}\)
Therefore, \(0.5+\frac{1}{2}+\frac{3}{4}=\frac{1}{2}+\frac{1}{2}+\frac{3}{4}=1\frac{3}{4}=\frac{7}{4}\)