Hello from MrBillDoesMath!
Answer:
a. 6/0 is undefined
b. 25/48
c. 2/5
d 1
e) ??? question is not clear
f) y^2/25
Discussion:
The problem statements are not particularity clear. Here are my interpretations:
a. Undefined as division by division is not a real (or complex) number
b. 5/6 * 5/8 = (5/6)*(5/8) = (5*5)/(6*8) = 25/48
c. 7/10/7/4 -- a model of confused thinking. I think it means
(7/10)/ (7/4) = (7/7) * (4/10) = 1 * (4/10) = 2/5
d. 4-3 = 1
e. (g2)5 -- unclear what this even means
f. I think this is interpreted as (y/5)*(y/5) = y^2 / 25
Good luck!
Thank you,
MrB