Subtract 49/40 from 49/54
1st number: 49/54, 2nd number: 1 9/40
49/54 - 49/40 is -343/1080.
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,
49/54 = 49 × 20/54 × 20 = 980/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
49/40 = 49 × 27/40 × 27 = 1323/1080 - Subtract the two like fractions:
980/1080 - 1323/1080 = 980 - 1323/1080 = -343/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/54-49/40 49/54-98/40 49/54-49/80