Answer:
55/11 hrs
Step-by-step explanation:
rodrigo 12hrs
DaShawn 10hrs
1/12+1/10=11/60
then reciprocate
60/11=5 5/11 hrs
-3
When putting the smaller number in front of the bigger number your answer will be negative. I hoped I helped :)
1679616
6*6
36*36*36*36
explanation has been shown in the attachments.