8
Twenty eighths.
A common denominator is 32.
At least two fractions are needed in order to determine a common denominator.
The common denominator is 4
56
24
The Least Common Denominator of 3/4 and 7/8 is 8.
The lowest common denominator would be twelve!
16 is the common denominator. 3/4=12/16 7/16=7/16 5/8=10/16
the common denominator for 9/8 and 7/20 is 40. (45/40 and 14/40)
1/7 + 3/8 = 8/56 + 21/56 is the lowest common denominator.
Just do the usual steps to add fractions. First, find the common denominator (8, in this case). Second, convert both fractions to the common denominator. Third, add the numerators.