Factor Trees and GCF
In this prime factorization and greatest common factor activity, middle schoolers use factor trees to find the prime factorization of 8 numbers. They find the GCF of six pairs of numbers.
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How Do You Put Fractions in Order Using an LCD?
Put fractions with different original denominators in order using the least common denominator. Once she has shown how to find the least common denominator, an instructor constructs equivalent fractions that are more easily compared to...
9 mins 4th - 8th Math
How Do You Find the Least Common Multiple by Multiplying Common Factors?
Don't get Least Common Multiple mixed up with Greatest Common Factor, it's easy to do. Use the prime factor tree to find the prime factorization of each of the terms given. This is where it gets tricky figuring out the LCM, so watch this...
4 mins 8th - 11th Math