Sammy spent 10% of his money on food and 30% of his money on a book. What was the ratio of the amount of money he spent on food to the amount of money he had left? Give your answer in simplest form. <br> <input min="0" type="number" id ="imp5pg183q9_1" class="lineinput" placeholder="?" /> : <input min="0" type="number" id ="imp5pg183q9_2" class="lineinput" placeholder="?" />