Answer :
The number of miles she should run on Friday is 2 3/4 miles.
Given that, Leah is training to run a half marathon her goal training is to run 20 miles a week. she ran 3 1/2 miles on Monday 4 3/4 miles on Tuesday 5 miles on Wednesday and 4 miles on Thursday.
We need to find how many miles will she need to run on Friday in order to meet her goal.
How to add mixed fractions?
Follow these steps to add mixed fractions:
- Add the whole numbers together.
- Find the lowest common denominator (LCD) of both fractions. The LCD is the lowest number that is evenly divisible by both numbers.
- Convert the fractions to have the LCD as their denominator.
- Once you have a common denominator, the fractions can be added by simply adding the numerators.
Now, the number of miles she ran together from Monday to Thursday
=3 1/2 + 4 3/4 + 5 + 4 =(3+4+5+4)(1/2 + 3/4)
=16 (2/4 + 3/4)
=16 5/4
=17 1/4
Remaining miles = 20-17 1/4
=20-69/4
=(80-69)/4
=11/4
=2 3/4
Therefore, the number of miles she should run on Friday is 2 3/4 miles.
To learn more about the addition of mixed fractions visit:
https://brainly.com/question/21495400.
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