Robyn ran 5 3/4 mikes last week she ran 4 1/10 mikes this week. How many more miles did she run last week
This question is easily answered by subtracting two fractions. But it is easier if both fractions are in improper form.
5 3/4 is equal to 23/4
4 1/10 is equal to 41/10
difference = 41/10 - 24/4
difference = [ (241) - (524) ] / 20
difference = (82 - 120) / 20
difference = -38/20
difference = -19/10 or -1 9/10 less
If you would like to know how many more miles did Robyn run last week, you can calculate this using the following steps:
last week: 5 3/4 = 23/4 miles = 115/20 miles
this week: 4 1/10 = 41/10 miles = 82/20 miles
115/20 - 82/20 = (115 - 82) / 20 = 33/20 = 1 13/20 miles
The correct result would be 1 13/20 miles.