What is subtract.

1/8-1/6=

Find the least common denominator (LCD). See what number is a multiple of both denominators 8 and 6. Since both 8 and 6 go into 24, we use that.

Now multiply each numerator by the number that its denominator is multiplied by to get 24.

So for 1/8: 8*3 = 24, so 1*3 = 3

That fraction becomes 3/24

For 1/6: 6*4 = 24, so 1*4 = 4

That fraction becomes 4/24

Now subtract the two fractions:

3/24 - 4/24 - - > only add the numerator and keep the common denominator, so (3 - 4) / 24 = - 1/24

Last step is to simply, but since no number goes into both 1 and 24 except for 1, - 1/24 is already in its simplest form.

1/8-1/6=3-4/24=-1/24