Answer:
[tex]\frac{10}{21}[/tex]
Step-by-step explanation:
Substitute the given values into the expression
- 4c - a
= - 4 × - [tex]\frac{2}{7}[/tex] - [tex]\frac{2}{3}[/tex]
= [tex]\frac{8}{7}[/tex] - [tex]\frac{2}{3}[/tex] ( the LCM of 7 and 3 is 21 ) , then
= [tex]\frac{8(3)}{7(3)}[/tex] - [tex]\frac{2(7)}{3(7)}[/tex]
= [tex]\frac{24}{21}[/tex] - [tex]\frac{14}{21}[/tex]
= [tex]\frac{24-14}{21}[/tex]
= [tex]\frac{10}{21}[/tex]
