Subtract 21/18 from 4/60
1st number: 4/60, 2nd number: 1 3/18
4/60 - 21/18 is -11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
4/60 = 4 × 3/60 × 3 = 12/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
21/18 = 21 × 10/18 × 10 = 210/180 - Subtract the two like fractions:
12/180 - 210/180 = 12 - 210/180 = -198/180 - After reducing the fraction, the answer is -11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/60-21/18 4/60-42/18 4/60-21/36 12/60-21/18 4/60-63/18 4/60-21/54 20/60-21/18 4/60-21/90 28/60-21/18