Answer:
You Will Be Given A Rulebrick and you will have to fill the hole page with things
Step-by-step explanation:
work is shown and pictured
3/4→15/20 and 2/5→8/20
4*5=20, do what you do to denominator to numerator, so 3*5=15. 15/20. Same for 2/5.
ANSWER
My Answer is in the photo above
