Question

A.

Answer 1

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!

Answer 2

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

$✠===============✠$

• $\boxed{c. \: 1 \frac{1}{8} }$

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

• $\frac{(3 \times 4) + (3 \times 8)}{8 + 4} \\ \\ = \frac{12 + 24}{32} \\ \\ = \frac{36}{32} \\ \\ \frac{36 \div 4}{32 \div 4} = \frac{9}{8} \\ \\ \frac{9}{8} = 1 \frac{1}{8} \\ \\ therefore \: the \: answer \: is \: 1 \frac{1}{8}$

$✠===============✠$

#CarryOnLearning