If you have a bad factorial base, you can just multiply the numerator and denominator with same factor
7!/(2!5!)
= 7!/(2!5!) \* 3/3 =
= (3*7!)/(3*2!5!)
= (3*7!)/(3!5!)
If you have a bad factorial base, you can just multiply the numerator and denominator with same factor
7!/(2!5!)
= 7!/(2!5!) \* 3/3 =
= (3*7!)/(3*2!5!)
= (3*7!)/(3!5!)