0.7 of Luis's money is equal to 90% of Ethan's money. What is the ratio of Luis's money to Ethan's money?
0.7 of Luis's money = 710 of Luis's money
90% of Ethan's money =
90100 of Ethan's money =
910 of Ethan's money
710 Luis's money is the same as
910 Ethan's money. Make the numerators the same. LCM of 7 and 9 is 63.
7 x 910 x 9 of Luis's money =
9 x 710 x 7 of Ethan's money
6390 of Luis's money =
6370 of Ethan's money
Luis's money : Ethan's money
90 : 70
(÷10)9 : 7
Answer(s): 9 : 7