kelly is 66 inches tall. Lucas is 72 inches tall. What is the ratio of Lucas's height to Kelly's height in simplest form? (: also, explain please!

Just divide Lucas's height by Kelly's height. 72/66 The GCF is 6 so divide both by 6 12/11 That's the answer :)

72/66 greatest common factor is 6 so iffy would be 12/11 which is your answer.:)