Subtract 80/54 from 1/40
1st number: 1/40, 2nd number: 1 26/54
1/40 - 80/54 is -1573/1080.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
1/40 = 1 × 27/40 × 27 = 27/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
80/54 = 80 × 20/54 × 20 = 1600/1080 - Subtract the two like fractions:
27/1080 - 1600/1080 = 27 - 1600/1080 = -1573/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-80/54 1/80-80/54 3/40-80/54 5/40-80/54 7/40-80/54