0.9 of Charlie's money is equal to 70% of Ivan's money. What is the ratio of Ivan's money to Charlie's money?
0.9 of Charlie's money = 910 of Charlie's money
70% of Ivan's money =
70100 of Ivan's money =
710 of Ivan's money
910 Charlie's money is the same as
710 Ivan's money. Make the numerators the same. LCM of 9 and 7 is 63.
9 x 710 x 7 of Charlie's money =
7 x 910 x 9 of Ivan's money
6370 of Charlie's money =
6390 of Ivan's money
Ivan's money : Charlie's money
90 : 70
(÷10)9 : 7
Answer(s): 9 : 7