I don't really get what you are asking
If this is what you are asking (how do i multiply this??):
(2)^2 . (25) = 4 x 25
(5) (16) = 5 x 16
What are you asking for the below? Is it a fraction or??????
5 + 2
3
If you mean (2^2*25)/(5*16), then you should use that 25=5*5 and 16=4*4:
(2^2*25)/(5*16)=(4*25)/(5*16)=(4*5*5)/(5*4*4)=5/4
You can also do it like this:
(2^2*25)/(5*16)=(4*25)/(5*16)=(4/16)*(25/5)=(1/4)*5=5/4
If you mean (5+2)/3, then there's no way to simplify it further than to 7/3. Both 7 and 3 are prime numbers. There's no way to express them as a product of two smaller integers, like I did with 16 and 25 above.