60
It is: 10
the GCF for 20, 30and 80 is 10.
The LCD of 20 and 9 is 180.
LCD(12, 20) = 60
The LCD of 5 and 4 is 20.
The LCD of 7 and 20 is 140
LCD(25, 20, 4) = 100.
Now how much tex for 20" lcd in airport
The LCD is 20
Lcd of 5,4,2 is 20 because 5*4=20 and 2*10=20
20
LCD(9, 28) = 252