Answer:
The answer to your question is: 4 7/12 hours
Step-by-step explanation:
Data
1 5/6 mowing the lawn
3/4 trimming the hedge
2 2/3 weeding the garden
Process
Convert mixed fractions to improper fractions
1 5/6 = (6 + 5 ) / 6 = 11 / 6
2 2/3 = (6 + 2) / 3 = 8 / 3
Sum the fractions
11/6 + 8/3 + 3/4 = ( 22 + 24 + 9) / 12
= 55 / 12
= 4 7/12 hours