0.1 of Andy's money is equal to 90% of Warren's money. What is the ratio of Andy's money to Warren's money?
0.1 of Andy's money = 110 of Andy's money
90% of Warren's money =
90100 of Warren's money =
910 of Warren's money
110 Andy's money is the same as
910 Warren's money. Make the numerators the same. LCM of 1 and 9 is 9.
1 x 910 x 9 of Andy's money =
9 x 110 x 1 of Warren's money
990 of Andy's money =
910 of Warren's money
Andy's money : Warren's money
90 : 10
(÷10)9 : 1
Answer(s): 9 : 1