The least common denominator is 38*7 = 266.
38 is.
There doesn't appear to be any fractions there but to find the LCD of fractions is done in the same way as finding the lowest common multiple of numbers.
22 over 38 can be reduced by dividing both the numerator and denominator by their greatest common factor, which is 2. Therefore, 22 over 38 reduced is 11 over 19.
1862
LCD(117, 38) = 4446.
LCD of 38 and 43 is 1
456
The LCD for 19 and 2 is 38
The lowest common factor of any set of positive integers is 1.
The least common factor is: 1
38/41 is the lowest term.