4 less than 15 is 60​

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?