Answer :
find the common factor between 63 and 27. it is 9. simplify.
63:27=7:3
therefore 49:x has to equal 7:3
49/7=7
7*3=21
so the answer is: 49:21
63:27=7:3
therefore 49:x has to equal 7:3
49/7=7
7*3=21
so the answer is: 49:21