Answer:
[tex]\frac{21}{10}[/tex]
Step-by-step explanation:
x - [tex]\frac{8}{5}[/tex] = [tex]\frac{2}{4}[/tex]
x= [tex]\frac{2}{4}[/tex] + [tex]\frac{8}{5}[/tex]
Now pay attention.
First, multiply the bottom 2 numbers (4 x 5), that goes on bottom of fraction : [tex]\frac{}{20}[/tex]
Then cross multiply : (4x8) and (2x5) and add them. Put it on top of fraction:
[tex]\frac{32 + 10}{20}[/tex]
[tex]\frac{42}{20}[/tex]
Then reduce fraction:
[tex]\frac{21}{10}[/tex]
I call it the butterfly effect.