Question

How do you write 18/20 a percentage

Answer 1

When you say "Percentage", it means automatically that it's a number/100
here you have 18/20, to make the percentage, you need to make it /100
100/20 = 5
so you need to multiply the the numerator and denominator of 18/20 by 5, which gives you 90/100, which means 90%
Hope this Helps :)

Answer 2

`(p)/(100)=p\% \\ \\ (18)/(20)=(18 * 5)/(20 * 5)=(90)/(100)=90\%`

18/20 is equal to 90%.