Any nonzero integer divided by 0 equals 0

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

Write 17/20 as a decimal and as a percent.

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.