Question

A surgical nurse works 2 1/4 hours in preoperative care, 3 1/2 hours in the operating room, and 2 3/4 hours in the recovery room. What is the total number of hours worked? Answer in decimal form and rounded to the nearest hundredth Place

Answer 1

8.5h

Step-by-step explanation:

`2(1)/(4) +3(1)/(2) +2(3)/(4)`

`=(9)/(4) +(7)/(2) +(11)/(4)` convert from mixed number to improper fraction

`=(9)/(4) +(14)/(4) +(11)/(4)` convert middle term to the same denominator by multiplying top and bottom of 7/2 by 2.

`=(9+14+11)/(4)` combine fractions because of common denominator

`=(34)/(4)` added the numbers in the numerator

`=(17)/(2)` final answer in fraction form

`=8.5` convert to decimal form by dividing numerator by denominator

The nurse worked 8.5 hours.