Subtract 21/54 from 10/60
10/60 - 21/54 is -2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
10/60 = 10 × 9/60 × 9 = 90/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
21/54 = 21 × 10/54 × 10 = 210/540 - Subtract the two like fractions:
90/540 - 210/540 = 90 - 210/540 = -120/540 - After reducing the fraction, the answer is -2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/60-21/54 10/60-42/54 30/60-21/54 10/60-63/54 50/60-21/54 70/60-21/54