28
21
12
12
12
12
Same as finding the LCM of 6, 5, 7: 2*3*5*7 = 210
3/12 +3/4 First, line up the fractions. 3/12=1/4 (divide both the numerator and the denominator by 3, the LCM) +3/4=3/4 Make them have the same denominator 1/4 +3/4 4/4 or 1
I am guessing you mean the least common denominator, which is the LCM of the denominators 4 and 20. The answer is 20.
LCM(5, 4, 3) = 60.
The LCM of 3 4 and 7 is 84.
The LCM of six, four and seven is eighty four.
To find the least common denominator of 3/4 and 3/8, find the LCM of 4 and 8. The answer is 8. Convert 3/4 to 6/8.