Question

3.125 bar express it in p by q form​

Answer 1

(3.125*1000)/1000

=3125/1000

hope this answer useful to you

Answer 2

let 3.125bar be x

x=3.125125.....

multiply by 1000 on both the sides

x×1000=3.125125...×1000

1000x=3125.125125.....

subtract the equations formed above

1000x - x = 3125.125....-3.125....

999x=3122

x=3122/999