Subtract 7/40 from 7/54
754 - 740 is -491080.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
754 = 7 × 2054 × 20 = 1401080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
740 = 7 × 2740 × 27 = 1891080 - Subtract the two like fractions:
1401080 - 1891080 = 140 - 1891080 = -491080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54-7/40 7/54-14/40 7/54-7/80 21/54-7/40 7/54-21/40 35/54-7/40 7/54-35/40 49/54-7/40 7/54-49/40