Jason spent 3/8 of his money on a pair of shoes and 4/7 of the remainder on shirt. He found that he had $45 left. What was was his original amount of money?
x = origianl amount
spending 3/8 ths leaves 5/8 x spending 4/7 of this leaves 3/7 (5/8 x) and this = 45
3/7 ( 5/8 x) = 45 solve for x
x = 168