Formula:
To subtract three fractions, say a/b - c/d - e/f, you first need to find a common denominator (LCM) for b, d, and f. Let this be LCM.
Then, convert each fraction to an equivalent fraction with the common denominator:
- First fraction:
(a * (LCM/b)) / LCM - Second fraction:
(c * (LCM/d)) / LCM - Third fraction:
(e * (LCM/f)) / LCM
((a * (LCM/b)) - (c * (LCM/d)) - (e * (LCM/f))) / LCM