Question

Last year, Wanda's history and math classes had regular tests. Each history test had 4 questions and each math test had 12 questions. If Wanda had to answer the same number history questions and math questions last year, what is the smallest number of each type of question she must have answered? ​

Answer 1

To find the smallest number of history and math questions Wanda must have answered, we need to find the least common multiple (LCM) of the numbers 4 and 12 since she answered the same number of both types of questions. Okay so the LCM of 4 and 12 is 12. So, Wanda must have answered at least 12 history questions and 12 math questions.