Subtract 7/80 from 7/54
754 - 780 is 912160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 54 × 40 = 2160,
754 = 7 × 4054 × 40 = 2802160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
780 = 7 × 2780 × 27 = 1892160 - Subtract the two like fractions:
2802160 - 1892160 = 280 - 1892160 = 912160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54-7/80 7/54-14/80 21/54-7/80 7/54-21/80 35/54-7/80 7/54-35/80 49/54-7/80 7/54-49/80