Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the highest amount of each factor.
2 x 3 x 5 x 7 = 210, the LCM
Chat with our AI personalities
a rule used to solve math questions
All but the simplest math questions are welcome and may be answered on WikiAnswers. (Simple calculation questions will be removed, eg. "what is 2+2".) Yes, wiki answers will help you to solve your math problems. Simple problems are solved directly, but for complex problems they will suggest related sites where you can get math questions with solutions.
You use variable in math problems to help you solve the answer. For example, you could do 50+50=a. The (a) would be the variable. Or for that same problem you could do 50+y=100. Then the (y) would be the variable.
These questions are meant to be used as a school-wide exercise. Your teacher should explain the solution after everyone has had a chance to solve it.
What math questions?