Subtract 8/27 from 81/60
1st number: 1 21/60, 2nd number: 8/27
81/60 - 8/27 is 569/540.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
81/60 = 81 × 9/60 × 9 = 729/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
8/27 = 8 × 20/27 × 20 = 160/540 - Subtract the two like fractions:
729/540 - 160/540 = 729 - 160/540 = 569/540 - In mixed form: 129/540
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/60-16/27 81/60-8/54 81/60-24/27 81/60-8/81 81/60-40/27 81/60-56/27