0.3 of Andy's money is equal to 70% of Pierre's money. What is the ratio of Pierre's money to Andy's money?
0.3 of Andy's money = 310 of Andy's money
70% of Pierre's money =
70100 of Pierre's money =
710 of Pierre's money
310 Andy's money is the same as
710 Pierre's money. Make the numerators the same. LCM of 3 and 7 is 21.
3 x 710 x 7 of Andy's money =
7 x 310 x 3 of Pierre's money
2170 of Andy's money =
2130 of Pierre's money
Pierre's money : Andy's money
30 : 70
(÷10)3 : 7
Answer(s): 3 : 7