A waiter's salary consists of his salary and tips. During one week his tips were 5/4 of his salary. What fraction of his income came from tips ?  Choose one:
A) 4/9  B) 5/4  C) 5/8  D) 5/9  E) 6/9
Income = salary (s) +tips = s + s*5/4 = s*9/4   Tips = s*5/4   fraction of his income came from tips = (s*5/4)/(s*9/4)= 5/9   ANSWER:5/9
<result>D</result>
A waiter's salary consists of his salary and tips. During one week his tips were 5/4 of his salary. What fraction of his income came from tips ?