Question 106220
Find the least common denominator. 
Break down all of the numbers in their prime factors. 
Find the product of the prime factors with the highest power. 
{{{1=1*1}}}
{{{2=1*2}}}
{{{3=1*3}}}
{{{4=2*2}}}
{{{5=1*highlight(5)}}}
{{{6=2*3}}}
{{{7=1*highlight(7)}}}
{{{8=highlight(2*2*2)}}}
{{{9=highlight(3*3)}}}
{{{10=2*5}}}
Primes are 2,3,5,and 7. 
The highest power of the primes is {{{2^3}}},{{{3^2}}},{{{5^1}}}, and {{{7^1}}}.
The product is,
LCD= {{{2^3*3^2*5^1*7^1}}}
LCD= {{{8*9*5*7}}}
LCD= 2520.