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vitfil [10]
3 years ago
8

On Saturday Marianna practice piano for 3/4 an hour,watched tv for 2 1/2 hours, and cooked dinner for 1/4 hour m.hiw long did Ma

rianna do all above activities in all

Mathematics
2 answers:
Kobotan [32]3 years ago
6 0
I know the answer my math teacher said it would be 3 1/2 hours
katovenus [111]3 years ago
5 0
2 1/2= 2 2/4
3/4 + 1/4 =4/4 or 1
convert 2 2/4 into an improper fraction: 10/4
10/4+4/4=14/4
14/4 simplifies into 3 2/4 hours
3 and 2/4 simplifies into 3 and 1/2
Mariana spent 3 and 1/2 hours doing all the activities
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