Question

find \\(\frac{1}{2} - \frac{1}{8}\\). how can i find the difference?
\\(\

$$\begin{aligned}\\frac{1}{2} - \\frac{1}{8} &= \\frac{4}{8} - \\frac{1}{8}\\\\&= \\frac{3}{8}\\end{aligned}$$

\\)
key idea
how can i subtract fractions when one denominator is a multiple of the other denominator?
i can rewrite one fraction so that they have
?
and then subtract the fractions.
options: the same denominator, different denominators

Explanation:

Step1: Identify key operation

Subtract fractions with denominators where one is multiple of the other.

Step2: Recall fraction subtraction rule

Fractions need equal denominators to subtract.

Step3: Match with given context

The example rewrites $\frac{1}{2}$ to $\frac{4}{8}$ (same denominator as $\frac{1}{8}$) before subtracting. Thus, the missing phrase is "the same denominator".

Answer:

the same denominator