Answer: [tex]0[/tex]
Step-by-step explanation:
Given the following expression:
[tex]\frac{1}{3}m-1-\frac{1}{2}n[/tex]
You know that the value of "m" is:
[tex]m=21[/tex]
And the value of "n" is:
[tex]n=12[/tex]
Knowing these values, you must substitute them into the given expression:
[tex]\frac{1}{3}(21)-1-\frac{1}{2}(12)[/tex]
So, in order to evaluate, the first step is to solve the multiplications and then you must reduce the fractions. Then:
[tex]\frac{(1)(21)}{3}-1-\frac{(1)(12)}{2}=\frac{21}{3}-1-\frac{12}{2}=7-1-6[/tex]
Now, you must solve the subtraction.
You get that the difference (which is the result of the subtraction) is the following:
[tex]=0[/tex]
