Answer: Yes, it is
-When you're simplify 18/21 , You will devided both denominator and numerator by 3 . Which means : [tex]\frac{18/3}{21/3}[/tex] = [tex]\frac{6}{7}[/tex]
-For example, when you got the answer, you should make the fraction to the SIMPLIEST FORM .
HOPE IT HELPS ^^
