1 74/81 is the answer for 3 4/9 × 5/9
For the pot one 6,156 litters
Looks like you meant to write (p/q)³ if so it's power of a quotient
To solve a mixed fraction you will have to multiply the mixed number by the denominator then add the numerator for example:
7 3/4 you are gonna go 7x4=28 then you are gonna take that 28 and add 3 to it so it would be 31. I hope that helped some c: