Answer 4 1/2 was the closest estimate.
Step-by-step explanation:
1 3/8 is equal to the improper fraction 11/8. When you multiply that by 3 (or 3/1), you get 33/8. To simplify this, think that 8 goes into 33 4 times, with a remainder of 1. So 33/8=4 1/8. This is closest to the answer 4 1/2 miles.
Each lap is 1 and 3/8 miles.
She ran 3 miles.
1 mile * 3 = 3 miles
3/8 miles * 3 = 9/8 miles = 1 1/8 mile (remember 8/8 miles = 1 mile)
3 miles + 1 mile + 1/8 mile = 4 1/8 miles
Now the question is what estimate was the best:
Remember that 1/2 = 2/4 = 4/8 etc.
The distance from 4 1/2 to 4 1/8 = 4 4/8 - 4 1/8 = 3/8 miles
The distance from 4 1/8 to 3 1/2 = 4 1/8 - 3 4/8 = 5/8 miles
https://sts-math.com/post_7941.html
