You need at least two fractions to find something in common.
The common denominator of 5 over 8 and 4 over 9 is 72.
It is 72.
The LCD for 5/9 and 4/5 is 45.
63
36
The LCDis36.
80
LCD(9, 6) = 18
Change to common denominator 1/3 + 2/9 = 3/9 + 2/9 Add the numerators 3 + 2 = 5 Place the sum (5) over the common denominator (9). 5/9 is the answer.
To subtract fractions, you need a common denominator. In this case, the common denominator is 45. So, 7/9 - 1/5 is equal to (35/45) - (9/45), which simplifies to 26/45.
9 is the common denominator. 2/3 = 6/9.
5