Question

Alexia ran three laps around neighborhood.Each lap is 1 3/8 miles. Which is the best estimate of the number of miles that alexa ran

Answer 1

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

Answer 2

Alexa ran 4 1/8 miles exactly. so the estimate would be 4