Melvin walked 5/8 mile to the library. He then walked 3/10 mile from the library to the store. About how far did Melvin walk?
A. about 1 1/2 miles
B. about 1 mile
C. about 1/2 mile
D. about 2 miles
aren't you just adding 5/8 + 3/10 ?
Your common denominator will be 40
or, since the answers are all estimates ...
5.8 = .625
3/10 = .3 , so we have .925 , almost 1
To determine how far Melvin walked, we need to calculate the total distance he walked.
First, Melvin walked 5/8 mile to the library.
Next, he walked 3/10 mile from the library to the store.
To find the total distance, we add the distances together: 5/8 + 3/10.
To add fractions, we need to find a common denominator. In this case, the common denominator is 40 (8 × 5 = 40, and 10 × 4 = 40).
Converting the fractions to have a denominator of 40, we have: 25/40 + 12/40.
Adding the numerators together, 25 + 12 = 37.
Our final fraction is 37/40.
Since the question asks for an approximation, we can round the fraction. 37 is closer to 40 than it is to 30, so we can round it up to 40.
Therefore, Melvin walked about 40/40 or 1 mile.
The answer is B. about 1 mile.