Difference between 1/9 and 1/2

7/18

Step-by-step explanation:

To find the difference between numbers, subtract. Since we have fractions, we need a common denominator to be able to subtract.

The LCD of 2 and 9 is 2 * 9 = 18

18/2 = 9

18/9 = 2

1/2 - 1/9 = (9 * 1) / (9 * 2) - (2 * 1) / (2 * 9) = 9/18 - 2/18 = 7/18

-7/18

Step-by-step explanation:

By add or subtracting fractions, you need to equalize the denominator.

To transform all denominators of 1/9 an 1/2 to the single value of 18, their LCM, we multiply a fraction by x/x where x=LCMy, where y is the denominator of the fraction being transformed.

In this case:

1/9 * 2/2 = 2/18

1/2 * 9/9 = 9/18

So the difference between 1/9 and 1/2

1/9 - 1/2

2/18 - 9/18

-7/18