SOLUTION: How do you figure out what 'n' is in this problem: 4/5n=8/9

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Question 518075: How do you figure out what 'n' is in this problem: 4/5n=8/9
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
+%284%2F5%29n+=+%284n%29%2F5+=+8%2F9+
.
cross multiply
.
+36n+=+40+
.
+n+=+40%2F36+=+10%2F9+
.
Done.