What is 3/20 as a decimal

Decimal means x/100

we know that 20 times 5=100 and and equivilent of a fraction is x/x or 1 so

3/20=3/20 times 5/5 so 15/100 or
15%

NOTE:
 To convert a fraction into a decimal, just divide the top by the bottom.
My math teacher taught us this: Bottom into top... Bottom into top.
Always remember when you are trying to convert a fraction to a deciaml you do: BOTTOM INTO TOP! :D
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~
 So, 3 divided by 20 equals to: .15  Bring the decimal two places to the right, and there is your percentege!
15%

A= b/2 because u simplying both sides of equation