Question

A.

1mile


b.
2 miles


c.
1 1/8 miles


d.
6/9 miles

Answer 1

`\huge\underline\bold{A} \underline\frak{nswer :}`

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• 
  `\boxed{c. \: 1 (1)/(8) }`

`\large\sf\to\green{solution}`

• 
  `((3 * 4) + (3 * 8))/(8 + 4) \\ \\ = (12 + 24)/(32) \\ \\ = (36)/(32) \\ \\ (36 / 4)/(32 / 4) = (9)/(8) \\ \\ (9)/(8) = 1 (1)/(8) \\ \\ therefore \: the \: answer \: is \: 1 (1)/(8)`

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#CarryOnLearning

Answer 2

in order to calculate this, we need to make the fractions have a common denominator. to do that, we find the smallest multiple that both 8 and 4 share. luckily 4 is a factor of 8, so we only need to change the one fraction.
to change 3/4 to have a denominator of 8, we will multiply the fraction by 2/2 since whatever you do to the bottom you must also do to the top.
3/4 * 2/2 = 6/8
now we can add the fractions to see how many miles were walked.
6/8 + 3/8 = 9/8, which can be simplified to 1 1/8 miles.
hope this helps!