Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Given expression:
[tex]\frac{10}{12}-\frac{3}{8}[/tex]
To estimate the given expression using the benchmark values.
Solution:
We can plot the given expression in a number line.
From the number lines, we can see that,
[tex]\frac{10}{12}[/tex] is closest to 1. So, we can estimate the fraction as 1 which is the benchmark value for the fraction.
[tex]\frac{3}{8}[/tex] is closest to [tex]\frac{1}{2}[/tex]. So, we can estimate this fraction as [tex]\frac{1}{2}[/tex] which is the benchmark fraction.
So, the expression can be re-written as:
[tex]1-\frac{1}{2}[/tex]
⇒ [tex]\frac{1}{2}[/tex] (Answer)
