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