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Jerome studied math for 5/8 of an hour, grammar for 1/2 of an hour, science for 2/5 of an hour, and history for 3/10 of an hour. what was the total amount of time Jerome spent studying?

User Lulhum
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2 Answers

6 votes

Answer: an hour and 49.5 minutes

Explanation:

1/2 = 5/10

2/5 = 4/10

5/10 + 4/10 + 3/10 = 12/10

12/10 = 144/120

5/8 = 75/120

75/120 + 144/120 = 219/120

219/120 = 1 99/120 = 1 49.5/60

hope this helps!

User BjornO
by
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4 votes

74.5 minutes

Turn every fraction denominator to 60 since those are minutes

5. 14.5

- ×7.5= -----

8. 60


(1)/(2) * 30= (30)/(60)


(2)/(5) *12=(12)/(60)


(3)/(10) *6= (18)/(60)

Add all of the numerators together for the total number of minute

User Davidluckystar
by
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