Answer:
First you need to figure out how much 2/3 is. To do this, you first have to figure out how much 1/3 is.
If Joy is 2/3 as old as Lyd there should be a 1/3 difference between them. The difference between their ages is said to be 20.
1/3=20
Remembering that 20 is one-third of Lyd's age, multiply 20 by 2 to get Joy's age, which is 2/3 of Lyd's age:
20x 2=40
Then add 20 onto that to get Lyd's age:
40+20=60
So the answer is:
Joy=40
Lyd=60