Answer:
3/4
Step-by-step explanation:
With regards to the above, since 1/4 of the volunteers are teenagers, the fraction of the volunteers would be
= 1 - 1/4
= 3/4
It therefore means that 3/4 of the volunteers are teenagers.
Greatest common factor between each term is 20, so you'd divide both by 20 to reduce this to 20(p - 3).