Avoid unnecessary decimals and complicated math.
Total income is\(50+\frac{5}{4}*50 = \frac{450}{4}\)
\(Tips = \frac{250}{4}\)
\(\frac{Part}{whole} = fraction\)
\(\frac{250}{4} * \frac{4}{450} = \frac{5}{9}\)
...
Total income is\(50+\frac{5}{4}*50 = \frac{450}{4}\)
\(Tips = \frac{250}{4}\)
\(\frac{Part}{whole} = fraction\)
\(\frac{250}{4} * \frac{4}{450} = \frac{5}{9}\)
...
