Answer:
x = 1/2
Step-by-step explanation:
4/5 * x = 2/5
We need to multiply by the reciprocal to get x alone
The reciprocal of 4/5 is 5/4
Multiply both side by 5/4
5/4 * 4/5 *x = 2/5 *5/4
x = 10/20
We can simplify by by dividing the top and bottom by 10
x = 1/2
