Subtract 80/27 from 81/75
1st number: 1 6/75, 2nd number: 2 26/27
81/75 - 80/27 is -1271/675.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 75 × 9 = 675,
81/75 = 81 × 9/75 × 9 = 729/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
80/27 = 80 × 25/27 × 25 = 2000/675 - Subtract the two like fractions:
729/675 - 2000/675 = 729 - 2000/675 = -1271/675
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/75-80/54 81/75-80/81