0.1 of Luis's money is equal to 40% of Riordan's money. What is the ratio of Riordan's money to Luis's money?
0.1 of Luis's money = 110 of Luis's money
40% of Riordan's money =
40100 of Riordan's money =
25 of Riordan's money
110 Luis's money is the same as
25 Riordan's money. Make the numerators the same. LCM of 1 and 2 is 2.
1 x 210 x 2 of Luis's money =
2 x 15 x 1 of Riordan's money
220 of Luis's money =
25 of Riordan's money
Riordan's money : Luis's money
5 : 20
(÷5)1 : 4
Answer(s): 1 : 4