FRACTIONS, LCM, AND GCF
Reduce the following fraction to lowest terms: 16/20
4/5
Reduce the following fraction to lowest terms: 7/14
1/2
Reduce the following fractions to lowest terms: 6/9
2/3
Reduce the following fraction to lowest terms: 3/8
3/8
Find the greatest common factor of 28 and 42
Work: Use prime factorization and find what they have in common. Answer: 14
equivalent fractions
fractions representing the same value
Find the greatest common factor of 30 and 105.
Work: Use prime factorization and find what they have in common. Answer: 15
Find the greatest common factor of 6 and 15.
Work: Use prime factorization and find what they have in common. Answer: 3
Find the least common multiple of 15 and 12.
Work: Use prime factorization. Then, multiply the top factors together. After that, multiply the not common # by the answer of the top multiplication. Answer: 60
Find the least common multiple of 4 and 6.
Work: Use prime factorization. Then, multiply the top factors together. After that, multiply the not common # by the answer of the top multiplication. Answer: 12
Find the least common multiple of 10 and 14.
Work: Use prime factorization. Then, multiply the top factors together. After that, multiply the not common # by the answer of the top multiplication. Example: 10 = 2, 5 2 times 5 = 10 14- 2,7 = 10 times 7= 70 Answer: 70
lowest terms
the only common factor of the numerator and the denominator of the fraction is 1
greatest common factor
largest number that divides evenly into both the numerator and the denominator of a fraction
least common multiple
smallest number into which two numbers can be divided evenly