If you want the answer to be in fraction :
7÷145 =
If you want the answer to be in decimal :
7÷145 = 0.05 (nearest hundredths)
Edited ....
Your question:
Nancy is volunteering at the shelter she want to spend an equal amount of time play w the dog she had 145 Mins to play seven dog abt how much time can she spend with each dog ??
Answer:
7 dogs = 145mins
1 dog = 145 ÷ 7 = 21 mins (nearest min)
She can spend about 21 mins with each dog.